Abstract: Disclosed are a method for manufacturing a high-temperature structural material and a precursor. The method includes following operations: providing a precursor, wherein the precursor is made of a polymer or the polymer and a high-temperature material; processing the precursor into a precursor object with a preset shape; and converting the processed precursor object into a high-temperature material object through a preset processing method.

Abstract: The present invention relates to a photo-curable liquid optically clear adhesive composition, to a cured adhesive and an article produced therefrom, and to the use thereof.

Abstract: The present invention relates to a photo-curable liquid optically clear adhesive composition, to a cured adhesive and an article produced therefrom, and to the use thereof.

Abstract: The present invention concerns solvent-based acrylic pressure sensitive adhesives and hot melt (or solvent-less) acrylic pressure sensitive adhesives comprising a solution or misible blend of a. at least one hydrophobic (meth) acrylic polymer, b. at least one substantially water insoluble polyol having a number average molecular weight of from 1,000 to 20,000 and selected from the group consisting of polyester polyols, acrylic polyols, polycarbonate polyols and polyether polyols, c. at least one transition metal complex as cross-linking agent, d. optionally one or more tackifying resins, g. optionally one or more solvents, h. optionally one or more of plasticizers, adhesion promoters, pigments, fillers, antioxidants and UV stabilizers. It employs polyols which are substantially insoluble in water and miscible with the acrylic polymer used in the adhesive composition.

Abstract: UV curable urethane (meth)acrylate polymers which useful as laminating and pressure sensitive adhesives am disclosed and methods of making them. The polymers comprise a urethane extended backbone formed by reacting diisocyanates with a mixture of polyols derived from acrylates and polyols derived from rubber polymers.

Abstract: The present invention concerns solvent-based acrylic pressure sensitive adhesives and hot melt (or solvent-less) acrylic pressure sensitive adhesives comprising a solution or misible blend of a. at least one hydrophobic (meth) acrylic polymer, b. at least one substantially water insoluble polyol having a number average molecular weight of from 1,000 to 20,000 and selected from the group consisting of polyester polyols, acrylic polyols, polycarbonate polyols and polyether polyols. c. at least one transition metal complex as cross-linking agent, d. optionally one or more tackifying resins, g. optionally one or more solvents. h. optionally one or more of plasticizers, adhesion promoters, pigments, fillers, antioxidants and UV stabilizers. It employs polyols which are substantially insoluble in water and miscible with the acrylic polymer used in the adhesive composition.

Abstract: The present invention is directed to hot melt pressure sensitive adhesive compositions, that exhibit excellent adhesion properties and improved thermal stability, said compositions comprising:a) 1 to 30 parts of styrene-butadiene-styrene triblock copolymer;b) 1 to 30 parts of styrene-isoprene-styrene triblock copolymer;c) 5 to 50 parts of a tackifier compatible with the butadiene and isoprene midblocks, but not compatible with the styrene end blocks;d) 5 to 70 parts of a tackifier compatible with the butadiene and isoprene midblocks, and the styrene end blocks;e) 5 to 30 parts of a tackifier compatible with the styrene end blocks, but not compatible with the butadiene and isoprene midblocks;f) 5 to 30 parts oil; andg) 0 to 5 parts wax.

Abstract: The specification discloses a method and additive for increasing the surface activity of non-polar polymeric materials, and a non-polar polymeric material exhibiting increased surface activity. The invention employs an additive of the formulaA-B-A.sup.1wherein each of the A and A.sup.1 blocks which may be the same or different has a number molecular weight in the range of from about 200 to about 1000 daltons and is selected from the group substituted and unsubstituted alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl and alkylaryl units derived from one or more esters, organic acids, organic halides or organic acid halides, and units derived from alkyl or aryl isocyanates or ester-amides. The B-block is a polyepichlorohydrin unit derived from a polyepichlorohydrin polyol having at least two terminal hydroxyl groups and having an average molecular weight in the range of from about 400 to about 4000 daltons.

Abstract: The specification discloses an additive composition for use in preparing adhesive formulations, particularly hot melt adhesive formulations based on A-B-A block copolymers which exhibit increased upper service temperatures. The additive composition comprises a preblend of of an A-block compatible reinforcing resin having a number average molecular weight ranging from about 2,000 to about 10,000 Daltons and a polydispersity index of less than about 4.0 and a B-block compatible resin. The A-block compatible reinforcing resin/B-block resin preblend enables introduction of more A-block reinforcing resin into the composition thereby increasing the overall upper service temperature of the adhesive formulation.

Abstract: The specification discloses elastomeric compositions and methods for making elastomeric compositions containing silica. The elastomeric composition comprises an elastomeric matrix containing from about 1 to about 40 wt. % silica and from about 0.1 to about 20 wt. % of an additive selected from the group consisting of rosin acid or fatty acid monoesters of glycerol and block copolymers having at least one A-block derived from the group consisting of rosin acids and fatty acids and a B-block having a number average molecular weight in the range of from about 200 to about 2500 daltons derived from the group consisting of a polyethylene glycol (PEG) and a polyepichlorohydrin (PECH) polyol. The additive provides substantial improvement in the dispersion and adhesion of silica in the elastomeric matrix which substantially improves the strength and other properties of the material.

Abstract: The specification discloses a method and additive for increasing the surface activity of non-polar polymeric materials, and a non-polar polymeric material exhibiting increased surface activity. The invention employs an additive of the formulaA-B-A.sup.1wherein each of the A and A.sup.1 blocks which may be the same or different has a number molecular weight in the range of from about 200 to about 1000 daltons and is selected from the group substituted and unsubstituted alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl and alkylaryl units derived from one or more esters, organic acids, organic halides or organic acid halides, and units derived from alkyl or aryl isocyanates or ester-amides. The B-block is a polyepichlorohydrin unit derived from a polyepichlorohydrin polyol having at least two terminal hydroxyl groups and having an average molecular weight in the range of from about 400 to about 4000 daltons.