572 results about "Polybutene" patented technology

A pressure sensitive adhesive composition suitable for medical purposes comprising a rubbery elastomeric base and one or more water soluble or water swellable hydrocolloids, the adhesive composition comprising a substantially homogeneous mixture of 35-50% of one or more polybutenes, 5-20% of one or more styrene copolymers, and 20-60% of one or more hydrocolloids has very good properties as an adhesive for ostomy appliances.

The invention discloses a polybutene alloy material and a preparation method thereof, and belongs to the field of polyolefin material, specifically relates to a polybutene alloy material and a preparation method thereof. The polybutene alloy material provided by the present invention comprises, by mass, 50-99% of poly-1-butene, 1-40% of polypropylene and 0-10% of a butane-propylene copolymer. Thepreparation method is characterized by: adopting a TiCl4/MgCl2 supported titanium catalyst for synthesis of the polybutene alloy material through a two-phase polymerization method. The polybutene alloy material provided by the present invention has a core-shell structure, and has advantages of the combination of the excellent impact resistance of the poly-1-butene, the heat resistance and creep property of the poly-1-butene, the low shrinkage rate of the poly-1-butene, the high modulus of the polypropylene, the high surface hardness of the polypropylene, the rapid shaping of the polypropylene, and the like, such that the polybutene alloy material can replace the partial use of the poly-1-butene and the polypropylene. In addition, the polybutene alloy material can be applicable for preparation of the pipe and the pipe fitting, toughening modification of the polypropylene, or the polybutene alloy material can be used as the general polyolefin material.

The invention discloses a filler masterbatch used for increasing the polarity of polypropylene and a preparation method thereof. The filler masterbatch is characterized by comprising the following components by weight percent: 50%-79% of inorganic filler, 15%-30% of carrier, 5%-17% of polar additive and 1%-3% of processing additive; and the polar additive is one or more of thermoplastic polyurethane resin (TPU), maleic anhydride grafted polypropylene, epoxy resin, ethylene acrylate, ethylene vinyl acetate, polyether amine and polybutylene polyol. In the preparation method of the invention, the added carrier can not improve the polarity of polypropylene, the inorganic filler is used to increase the rigidity of the material; the key is to introduce the polar additive with high unipolarity, thus the filler masterbatch used for increasing the polarity of polypropylene can be prepared; when the filler masterbatch is combined with the polypropylene material for production, the surface polarity of the filled and modified polypropylene material can be increased, the surface energy of the filled and modified polypropylene can be reduced, the dimension stability can be increased, the modified polypropylene material can have good paint adhesion and the material can be used to form exterior trimming parts such as bumpers and interior trimming parts such instrument panels.

The invention discloses tires including innerliners, the innerliners made from at least one polybutene processing aid and at least one elastomer having C₄ to C₇ isoolefin derived units.

The present invention relates to a novel hydrocolloid adhesive mass useful for medical purposes, characterized in that said hydrocolloid adhesive mass comprises:a) 0.2 to 5 parts by weight of an ethoxylated sorbitan fatty acid ester;b) 20 to 50 parts by weight of a hydrocolloid;c) 32 to 120 to parts by weight of an adhesive matrix made up of one or more polymers selected from poly(styrene/olefin/styrene) block copolymers, low-molecular polyisobutylenes and high-molecular polyisobutylenes, and one or more compounds selected from sticky resins, or tackifying resins, plasticizers, polybutenes, antioxidants, ethylene/vinyl acetate copolymers, butyl rubbers and ethylene/propylene block copolymers; andd) 0 to 15 parts by weight of an acrylate copolymer with a glass transition temperature below -20° C. It further relates to the use of this hydrocolloid adhesive mass for the production of dressings, especially for the treatment of superficial, deep, chronic or acute dermo-epidermal lesions, exudative wounds and bums.

The present invention provides a liquid ester composition which is obtained by esterifying a branched isostearic acid such as 2-(1,3,3-trimethyl)butyl-5,7,7-trimethyl octanoic acid with dipentaerythritol, and said liquid ester composition having a viscosity at 25° C. of 100,000 to 2,000,000 mPa·s; hydroxyl value of 10 to 160; and cloud point of less than 5° C. This liquid ester composition has pigment dispersibility and hydrating ability that polybutene, which is one of the raw materials of oil compositions for cosmetic compositions, does not have, together with their abilities to sustain feeling of cosmetic film and improve gloss and moisture feeling of cosmetic compositions and shape retaining ability of lipsticks and the like equal to those containing polybutene.

The release liner includes a release layer constituted of at least one polyolefin resin, wherein the release layer has surface irregularities. The surface irregularities of the release layer may be constituted of recesses and protrusions which are irregularly different in shape and have been disposed in irregular arrangement. The release layer preferably has a surface roughness Ra of 1-3 μm. As the polyolefin resin constituting the release layer can be used at least one polyolefin resin selected from the group consisting of polyethylenes, polypropylene, polybutenes, poly(4-methyl-1-pentene), and copolymers of ethylene with one or more α-olefins having 3-10 carbon atoms.

A process for preparing a form-fixed phase change material includes plasticizing olefine polymer (10-50 wt.%) to become chips, gradually adding paraffine until its content is 90-50 wt%, breaking, smelting-extruding out, water cooling and baking. The said polymer may be at least one of polyethene, polypropene, polybutene, etc. The resultant material features 25-70 deg.c for phase-changing temp, high phase-changing enthalpy up to 175 KJ/kg and no molecular leakage.

An engine lubricant that is substantially free of zinc and phosphorous contains an antiwear additive comprising borated 1,2 epoxy mixed polybutenes having an average carbon number in the range of C₂₀ to about C₁₂₀.

The invention discloses high intumescent fire stopping mastic and a method for preparing the same. The mastic is prepared by taking acrylate emulsion (or elastic styrene-acrylate emulsion), polybutene (or polyisobutylene), glycol, emulsifying agent and tritolyl phosphate as base materials with addition of certain auxiliary materials. The preparation method is as follows: the base materials are added into a reaction kettle according to certain mass portion, stirred, slowly heated and insulated for a period of time, and transferred into a colloid stirrer; auxiliary materials such as ammonium polyphosphates, flame-retarding aluminum hydroxide, flame-retarding zinc borates, calcium carbonates, expandable graphite, iron oxide red and glass fibers are gradually added into the mixture under the condition of stirring; and the process of stirring is continued until a colloid is uniform. The fire stopping mastic prepared by adoption of the method can be quickly carbonized and expanded to 5 to 8 times of the prior volume in case of fire, and can not fall off; the strength and the heat insulation after solidification are good, and the fire resistance is very good; and the adhesion is strong and the elasticity is good. The high intumescent fire stopping mastic and the method are particularly suitable for fire compartmentation of various penetrating penetration assemblies such as cables, cable bridges, pipes and so on.

The invention relates to the field of smokeless tobaccos, and particularly relates to a mouth-holding type smokeless tobacco product and a preparing method thereof. The mouth-holding type smokeless tobacco product comprises, by weight, 5-25 parts of a tobacco material, 0.2-8 parts of a traditional Chinese medicine agent, 0.1-2 parts of a saline taste agent, 0-6 parts of a sweetening agent, 0.1-2.5 parts of a pH conditioning agent, 0.1-6 parts of a flavouring agent, 0.2-2.5 parts of a humectant, 0-1.2 parts of an antioxidant, 0.001-0.5 part of a corrosion remover, 0-4 parts of a polybutene and 5-25 parts of water. By means of the mouth-holding type smokeless tobacco product, sun-cured tobaccos produced in Guizhou serve as main tobacco raw materials, nicotine reducing and aroma enhancement are carried out on the tobaccos, and the traditional Chinese medicine agent is added, so that oral cavity and throat excitements caused by contents such as the nicotine are reduced, and the taste quality and the fragrance style are improved. In addition, the traditional Chinese medicine agent further has a certain antibacterial property, and the using safety performance of the product is improved.

A refrigerant transportation hose having excellent processability and durability, as well as high resistance to gas permeation (gas barrier properties) and adequate flexibility. The refrigerant transportation hose containing a tubular rubber layer in which refrigerant is circulated, the tubular rubber layer is formed by a material consisting essentially of components (A) to (C): (A) at least one rubber of butyl rubber and halogenated butyl rubber; (B) polybutene; and (C) a white filler.

The invention provides a modified polyethylene film which is characterized by comprising, by weight, 40-60 parts of linear low density polyethylene and/or low density polyethylene, 15-25 parts of polybutylene or modified polybutylene and 25-35 parts of ethylene-propylene copolymer. The invention further provides a composite film made of the modified polyethylene film. Horizontal and longitudinal tensile strength of the modified polyethylene film are improved, no stratification occurs when the modified polyethylene film is processed and used, composite film packing materials which are made further have good sealing effect, and the modified polyethylene film keeps good easy-to-uncover performance.

Poly(1-butene) resin composition comprises 90-99.95 wt.% of a poly(1-butene) resin (A) which is obtained by copolymerizing 80-100 mol% of 1-butene with 0-20 mol% of a 2-10C α -olefin except 1-butene and has 0.01-50 g/10 minutes MFR (190 deg.C) and 0.05-10 wt.% of a polypropylene resin (B) having 0.01-50 g/10 minutes MFR (230 deg.C). This pipe and this joint for a pipe comprise the composition. According to this present invention a poly(1-butene) resin composition capable of preparing a pipe which shortens a curing time and reduces a molding cycle, namely has excellent productivity and excellent winding properties after extrusion molding, its pipe and a joint suitable for the pipe in which the pipe is suitable for a fluid transportation pipe such as a water supply pipe, a warm water supply pipe, etc., and the joint for a pipe is preferably useful as the joint for the pipe.

The invention discloses an anti-splashing chinlon DTY oil agent and a preparation method thereof. A conventional chinlon DTY oil agent splashes on various parts when spinning processing speed increases. The anti-splashing chinlon DTY oil agent is composed of following components, by weight, 60-80% of a high-temperature resistance smooth agent, 10-25% of an environment-friendly emulsifier, 3-10% of a bundling agent, 4-6% of a compound antistatic agent, 1-2% of an anti-splashing agent and the balance polymeric additive. The anti-splashing agent is a mixture of an ethene-propylene copolymer and polyisobutylene or polybutene. The anti-splashing agent is good in anti-splashing performance, is free from splashing and causing oil-stained fibers during a production process, is free of APEO and is non-pollution and nontoxic to environment.

Improved single ply, water proof roof coverings having an extruded pressure sensitive rubber-based adhesive backing for attachment to a substrate such as the roof of a building or a transport vehicle, the adhesive comprising a thermoplastic rubber containing at least 25% butyl rubber in combination with polyisobutylene and low molecular weight polybutene.

The invention relates to a mouth-keeping smokeless tobacco product containing fagopyrum particles. The mouth-keeping smokeless tobacco product is prepared from the following components in parts by weight: 15-60 parts of tobacco powder, tobacco extract or tobacco extract composite powder, 1-40 parts of fagopyrum particles, 0.5-5 parts of salt substance, 1-25 parts of a sweetening agent, 0.5-5 parts of a pH modifier, 0.5-15 parts of a natural flavouring agent, 1-5 parts of a humectant, 0.005-1 part of an antioxidant, 0.005-0.5 part of a preservative, 0-10 parts of polybutene, and the balance of water, and the sum of the components in parts by weight is 100 parts. The invention further provides a preparation method for the product. According to the invention, the fagopyrum particles are added into the product, so that the product has the effect of clearing away heat and toxic materials, reducing blood pressure and promoting appetite, removing free radicals, and improving human body immunity, and has a unique buckwheat flavor, empyreumatique and other flavor styles; the tobacco raw material is subjected to nicotine reducing and aroma enhancement treatment, so that stimulation caused by nicotine is reduced, the mouth feel comfort degree of the mouth-keeping smokeless tobacco product is improved and the mouth-keeping smokeless tobacco product is a novel mouth-keeping smokeless tobacco product.

The invention provides adhesives and methods of using the adhesives to bond substrates together, and to articles of manufacture comprising the adhesives. It has been discovered that an adhesive with a polymer content greater than 70 weight percent can be formulated with a blend of (i) a metallocene catalyzed polypropylene polymer that has a density range of about 0.70 to about 0.91 g/cm³ and a melt viscosity less than 50,000 cP at 190° C. and (ii) a Ziegler-Natta catalyzed amorphous polybutene and/or polypropylene copolymer. Such adhesives have high creep resistance making them particularly well suited for disposable personal care garments.

The invention relates to a preparation method of high-isotacticity polybutene-1 powder. The method comprises the following steps: sequentially adding a cocatalyst solution, an outer electron donor, a main catalyst, an assistant compound and a liquid-phase alpha-olefin into a tank reactor, prepolymerizing at 10-90 DEG C for 10-120 minutes, evacuating olefin gas, charging butylene-1 monomer and molecular weight regulator hydrogen gas, polymerizing at -10-90 DEG C for 1-20 hours, and carrying out flash evaporation on the unreacted monomer to obtain the high-isotacticity polybutene-1 powder. The polymerization method for synthesizing high-isotacticity polybutene-1 and powder thereof is simple in technique and easy to operate. The prepolymerization method solves the problem of difficulty in controlling the form of the polybutene-1 in the common catalytic polymerization method, and improves the problem of long crystal form transition period of the polybutene-1.