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107results about How to "Soft feel" patented technology

Preparation method of modified cation waterborne polyurethane emulsion containing hydrophilic and hydrophobic side long chains and product thereof

The invention relates to a preparation method of modified cation waterborne polyurethane emulsion containing hydrophilic and hydrophobic side long chains and a product thereof. The method comprises the following steps that raw materials are prepared; polyester glycol dehydration pretreatment is carried out; polyester glycol obtained after dehydration pretreatment is subjected to a prepolymerization reaction with an end alkyl polysiloxane linear body, a nonionic chain extender, a functionality chain extender and diisocyanate under catalyzing of a polymerization catalyst so that a prepolymer can be obtained; the prepolymer reacts with a nonionic chain extender and a part diluent to prepare an intermediate; the intermediate reacts with a silane coupling agent, and is emulsified to prepare the modified cation waterborne polyurethane emulsion. The product is a polyester type cation waterborne polyurethane high-polymer material containing hydrophilic and hydrophobic side long chains, wherein polysiloxane is embedded into a main chain of the material, a side chain is grafted with long-chain polyether and long-chain alkyl, and the silane coupling agent is connected into the tail end of the material; the film-forming ability is high, and serving as a film, the emulsion has obvious water-repellent, antifouling and easy dirt-removing abilities, is excellent in compatibility with a cation softening agent, and has an excellent low-temperature soft feature; the product is safe, environmentally friendly and convenient to use.
Owner:HUBEI DAYA BIOLOGICAL TECH CO LTD

Preparation method of quaternary ammonium type positive ion polyurethane base polyether block hydrophilic silicone softener ultra-micro emulsion and product thereof

ActiveCN103497307AImprove soft feelGood application performanceGrip property fibresVegetal fibresPrepolymerIon
The invention relates to a preparation method of quaternary ammonium type positive ion polyurethane base polyether block hydrophilic silicone softener ultra-micro emulsion and a product thereof. The preparation method comprises the steps that raw materials comprising polymerization monomers, a modifier, an adjuvant and distilled water are prepared; dehydration pre-treatment is conducted on polyether ether glycol; the pre-polymerized reaction is conducted on the dehydrated polyether ether glycol, an end hydroxyl polysiloxane linear body and diisocyanate under the catalyst function of a polymerization catalyst, and a prepolymer is prepared; the chain extension reaction is conducted on the prepolymer, a tertiary amine chain extender agent and an aminosilane coupling agent and an intermediate is prepared; a polymerization stropping agent is added and the reaction is stopped, and a quaternization reagent is added for conducting a quanternization reaction; a product is prepared through emulsification. The preparation method of quaternary ammonium type positive ion polyurethane base polyether block hydrophilic silicone softener ultra-micro emulsion can give unique soft waxy style for various fabric weaving products, is used for improving the soft feel of various kinds of fabric products, does not affect the hydrophilia of natural fiber fabrics, and has good application performance and wide application prospects.
Owner:中山市天信助剂实业有限公司

Preparation method of shoe lining leather

The invention relates to a preparation method of shoe lining leather. The preparation method comprises the following steps: (1) uniformly mixing and stirring PU resin, a thickener, a leveling agent and water to prepare mixed slurry; (2) coating the surface of release paper with the mixed slurry, carrying out drying to obtain a PU surface layer, coating the surface layer with the mixed slurry, carrying out drying, and forming a PU bottom layer on the PU surface layer to obtain a PU dry film; (3) impregnating base cloth with water-based wet resin, and carrying out drying to obtain a base; and (4) coating the PU bottom layer of the PU dry film with a solvent-free adhesive, carrying out pre-drying, laminating the PU dry film with the base, and conducting drying and curing to obtain the shoe lining leather. According to the invention, the PU dry film and the base are compounded by adopting the specific solvent-free adhesive, a formula of the solvent-free adhesive is optimized, and proper raw materials are selected to prepare the PU bottom layer and the PU surface layer, so the peel strength of the shoe lining leather is greatly improved, and the folding resistance and the wear resistance of the shoe lining leather are improved; and the DMF content of the shoe lining leather meets requirements prescribed by the ZDHC organization according to detection results.
Owner:HUALUN LEATHER & PLASTIC SUZHOU

Bulletproof composite material and preparation method and application thereof

The invention discloses a bulletproof composite material, the bulletproof composite material is a resin-based composite material comprising polyimide fiber as a reinforcing body, wherein the mass ratio of the polyimide fiber is 60% to 90% by mass percentage, and the mass ratio of a resin matrix is 10% to 40%. The polyimide fiber is modified fiber which is subjected to interfacial treatment using an inert modifier, and the inert modifier is obtained by mixing aqueous thermoplastic polyurethane and aqueous polyolefin resin in a certain ratio. The invention also discloses a preparation method andapplication of the bulletproof composite material. The polyimide fiber is used as the reinforcing body, and the reinforcing body is subjected to the special interfacial treatment, infiltrated into the matrix resin according to a certain arrangement manner, and compounded with the resin matrix by a specific composite process, the prepared bulletproof composite material has the characteristics of good tensile strength and tensile modulus, good resistance to high and low temperature, light weight, and good flame retardancy and spinnability, and is suitable for preparation of soft and highly-comfortable-to-wear bulletproof clothing and bulletproof armor materials.
Owner:BEIJING PROTECH NEW MATERIAL SCI CO LTD

Method for preparing a solid golf ball

InactiveUS6893359B2Sufficient initial speedSoft feelTailstocks/centresConfectioneryEngineeringHardness
A solid golf ball includes a core formed from a rubber composition and a cover directly covering the core. The cover is formed from a cover material mainly containing a thermoplastic urethane resin by injection molding using a mold composed of upper and lower mold halves. The core has a hardness, expressed by a deflection measured under an applied load of 5 kg to 130 kg, in a range of 2.0 mm or more. The cover has a thickness in a range of 0.9 mm to 1.7 mm. Assuming that a parting plane of the upper and lower mold halves is taken as an equator, each of the upper and lower mold halves has air vent portions in a region within a radius of 10 mm, measured as that projected on the equator plane, from a pole of the mold half. The total length of gaps of the air vent portions formed in the upper and lower mold halves is in a range of 90 mm or more. The width of each of the gaps of the air vent portions is in a range of 0.01 to 0.08 mm. The total area, measured as that projected on the equator plane, of the gaps of the air vent portions formed in the upper and lower mold halves is in a range of 1 to 5 mm2. The solid golf ball exhibits a high resilience and excellent controllability and durability while keeping a soft feel when hit with a putter, and is particularly characterized in that even a thin cover can be stably formed around the core by injection molding,
Owner:BRIDGESTONE SPORTS
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