14 results about "Poly vinyl chloride" patented technology

The present disclosure relates to a flexible multi-layered material. An embodiment consistent with the disclosure has a plurality of poly(vinyl chloride)—PVC—layers, wherein at least one of the plurality of PVC layers is a foam layer, wherein each of the layers of the plurality of PVC layers comprises up to 60% (w / w) of a phthalate-free plasticizer, and wherein the phthalate-free plasticizer is selected from the group consisting of: phosphate, trimellitate, adipate, citrate, sebacate, polyester, vegetable oil, and mixtures thereof, and wherein the solubility of the phthalate-free plasticizer in the PVC is at least 13 (J·cm−3)1 / 2.

The invention relates to the technical field of new material detection, in particular to an appearance defect detection device for a PVC-PE (Poly Vinyl Chloride-Polyethylene) composite film. Comprising a movable base, a lifting mechanism is arranged on the movable base, a lifting table is arranged at the top end of the lifting mechanism, and a detection box for detecting appearance flaws of the PVC-PE composite film is mounted on the lifting table; an adjustable illumination mechanism for performing multi-angle and distance illumination on the PVC-PE composite film is arranged on the inner wall of the detection box; a closed dust removal chain is formed by a dust collection part (a soft hair electric cleaning roller and negative pressure dust guide) and a dust collection box, dust collection operation is synchronously carried out on the upper surface and the lower surface of the PVC-PE composite film, the dust attached to the PVC-PE composite film is prevented from influencing detection data, meanwhile, the dust is collected, secondary pollution to the PVC-PE composite film is effectively avoided, and the service life of the PVC-PE composite film is prolonged. Therefore, the accuracy of the detection data is further improved, and pollution to the external environment is avoided.

A protective film comprising a release liner, a pressure sensitive adhesive layer, and a base material film laminated in this order in a thickness direction thereof, wherein the base material film contains polyurethane or poly(vinyl chloride), and information is printed on an opposite side, of the release liner, from the pressure sensitive adhesive layer.

Heat shrinkable films comprised of polyesters comprising certain combinations of glycols and diacids in particular proportions. These polyesters afford certain advantageous properties in the resulting shrinkable films including toughness and / or ageing, and thus are suitable as replacements for commercially available shrink films made using poly(vinyl chloride).

The disclosure provides a method of preparing porous membranes from waste PVC plastics comprising unknown fixed quantities of plasticizer. The method includes the steps of providing a first solution comprising waste PVC particles and said plasticizer in a first aprotic solvent and a second solution comprising a porogen in a second aprotic solvent. The first and second solutions are mixed to provide a dope solution comprising solubilised waste PVC particles, said plasticizer and the porogen in the first and second aprotic solvents. The resulting dope solution is cast in a layer on a surface of a substrate to form a membrane precursor. The membrane precursor is then immersed in a non-solvent for a period of time sufficient for the membrane precursor to undergo phase inversion and produce the porous membrane.

Disclosed is an ink comprising: (a) a solvent composition; and (b) a pigment dispersion; wherein the solvent composition comprises soybean methyl ester, diisobutyl succinate, diisobutyl glutarate, and diisobutyl adipate, the soybean methyl ester being present in an amount of 30% to 75% by weight based on the total weight of the ink, and wherein the pigment dispersion comprises a pigment and a binder, the binder comprises a poly (vinyl chloride-vinyl acetate) copolymer. A process for producing the ink, a printing method, and a printed article are also disclosed.

Disclosed is an ink comprising: (a) a solvent composition; and (b) a pigment dispersion; wherein the solvent composition comprises diisobutyl succinate, diisobutyl glutarate, and diisobutyl adipate wherein the total amount of diisobutyl succinate, diisobutyl glutarate, and diisobutyl adipate is 50 wt% or more based on the total weight of the ink, and wherein the pigment dispersion comprises a pigment and a binder, the binder comprises a poly (vinyl chloride-vinyl acetate) copolymer. A process for producing the ink, a printing method, and a printed article are also disclosed.

The present disclosure relates to the use of eggshell particles as a polymer thermal stabilizer, preferably as a poly(vinyl chloride) (PVC) thermal stabilizer; also to a flexible material comprising a multi-layered PVC-based material, method of obtaining and uses thereof.An aspect of the present disclosure relates to a material comprising a poly(vinyl chloride), PVC, layer comprising eggshell particles, wherein the eggshell particle size is up to 200 μm, an intermediate layer or a plurality of intermediate layers; a support layer selected from the following list: fabric, knitted fabric, nonwoven, foam, or mixtures thereof; wherein the layers are bounded. Preferably a material solution free of azodicarbonamide, for automotive Interiors—Eco-friendlier, preferably sustainable artificial leather for automotive upholsteries.

The present invention relates to a process of solvent cement made by waste PVC fill material recyc1ates for bonding of PVC pipes and other molded objects. The present invention relates to an improved and new method for production of waste PVC based solvent cement which comprises mechanically recycled waste PVC rec elates, minor amount of virgin PVC and solvents mixture. The recycled product will bring economic and environmental benefits and it is stable at room temperature at air tight condition and storage life is one year.

The present invention relates to a method for producing PVC, and in particular provides a method for producing PVC by polymerization of vinyl chloride, comprising the steps of: (a) reacting an acyl halide with a peroxide in a reactor to form a diacyl peroxide; (b) reacting an alkyl haloformate with the peroxide in the same reactor to form a dialkyl peroxydicarbonate without removing the diacyl peroxide formed in step (a), thereby producing a mixture comprising the diacyl peroxide and the dialkyl peroxydicarbonate; and (c) using the mixture comprising the diacyl peroxide and the dialkyl peroxydicarbonate as an initiator mixture for the polymerization of vinyl chloride.

The article according to this design is a corrugated cable protection pipe made of vinyl chloride for storing and protecting electric wires and cables inside, and it is applicable to extra-high voltage cables, etc. as an alternative to CCVP pipes made of vinyl chloride. Here, in the case of CCVP pipes made of vinyl chloride, etc., when applying to the bent part, a dedicated bent pipe is required, but the article according to this design is different in that it can also be applied to the bent part. The characteristics of the cable protection pipe of this design are that it has the same pressure resistance as the conventional vinyl chloride pipe, and at the same time, it is a corrugated pipe with a predetermined flexibility. Moreover, while controlling the flexibility within a predetermined range, it further improves the linearity of passing wires by improving the drawback of the large friction coefficient of the vinyl chloride pipe. Specifically, as the corrugated shape, the peak part is formed in a straight line with a predetermined length, and as the valley part, a valley part with a very gentle curvature of a predetermined depth is provided without providing a straight valley part, and it is formed into a corrugated shape connected by inclined surfaces at a predetermined angle from both ends of the straight peak part to the adjacent valley parts respectively. Here, the height difference between the peak part and the valley part is appropriately set according to the diameter of the cable protection pipe. As a result, the lowest point of the internal valley part is formed in a dot shape, so that the frictional resistance due to the reduction of the contact area when pulling the cable into the wire pipe can be reduced, and the pressure resistance, flexibility, and further the linearity of passing wires can be improved.

Disclosed herein are thermoplastic polymer matrix compositions for a continuous fiber reinforced thermoplastic composite article, comprising at least one of poly(vinyl chloride) and / or chlorinated poly(vinyl chloride). Also disclosed herein are methods for formulating thermoplastic polymer matrix compositions suitable for impregnating continuous fibers for continuous fiber-reinforced thermoplastic composite articles, wherein the thermoplastic polymer matrix compositions have sufficient viscosity and thermal stability to impregnate continuous fibers and withstand thermal treatment at high temperatures and long residence times without decomposing.

The article according to this design is a corrugated cable protection pipe made of vinyl chloride for housing and protecting electric wires and cables inside, and is applicable to extra-high voltage cables, etc. as an alternative to CCVP pipes made of PVC. Here, in the case of CCVP pipes made of PVC, etc., when applying to the bent part, a dedicated bent pipe is required, but the article according to this design is different in that it can also be applied to the bent part. The characteristics of the cable protection pipe of this design are that it has the same pressure resistance as the conventional PVC pipe, and at the same time, it is a corrugated pipe with a predetermined flexibility, and moreover, it enables the flexibility to be controlled within a predetermined range. Specifically, as the corrugated shape, the peak part is formed in a straight line of a predetermined length, the valley part is also formed in a straight line of a predetermined length, and the height difference between the peak part and the valley part is set to a predetermined height according to the diameter of the protection pipe. The shape is such that the both ends of the straight peak part are connected to the both ends of the straight valley part of a predetermined depth by inclined surfaces at a predetermined angle and curves at both ends respectively.

The present invention addresses the problem of providing an adhesive tape which is unlikely to peel or become sticky during long-term use and which is suitable for use in low temperature environments.　One aspect of the present invention is an adhesive tape comprising: a base material layer containing a poly(vinyl chloride) resin; and a rubber-based adhesive layer provided to at least one surface of the base material layer. The adhesive tape has a tensile breaking elongation of 50% or more when measured at -33°C using a method stipulated in JIS Z 0237: 2009. In addition, the content of a (meth)acrylic polymer in the rubber-based adhesive layer is 5-25 mass%. Furthermore, the rubber-based adhesive layer has a storage elastic modulus of 0.25-0.45 MPa at 23°C.