摘要:
The present invention relates to novel adhesive-forming compositions of silylated polyurethane blended with pre-formed adhesives, and pressure sensitive adhesives containing the same.
摘要:
A silylated polymer contains repeating units derived from butadiene. The polymer when partially silylated is especially useful for pressure sensitive adhesives where it imparts superior solvent resistance performance thereto.
摘要:
A laminate includes a backing material coated with an adhesive composition. The adhesive composition includes a silylated polyurethane obtained from the silylation of a polyurethane prepolymer derived from the reaction of polybutadiene polyol and polyisocyanate; and an additional adhesive component.
摘要:
The present invention relates to novel adhesive-forming compositions of silylated polyurethane prepolymer blended with pre-formed adhesives, and pressure sensitive adhesives containing the same. The silylated polyurethane prepolymer is obtained from the silylation of a polyurethane prepolymer derived from the reaction of polybutadiene polyol and polyisocyanante, where the polybutadiene polyol possesses a primary hydroxyl group content of from about 0.1 to about 2.0 meq/g.
摘要:
This invention relates to a laminate having a facestock and silicone pressure sensitive adhesion compositions releasably adhered to a conventional silicone release coated liner.
摘要:
A laminate includes a backing material coated with an adhesive composition. The adhesive composition includes a silylated polyurethane obtained from the silylation of a polyurethane prepolymer derived from the reaction of polybutadiene polyol and polyisocyanate; and an additional adhesive component.
摘要:
The combination of an aqueous silicone release emulsion selected from the group of aqueous silicone emulsions consisting of condensation curable and addition curable silicone emulsions with an aqueous polyurethane emulsion creates a mixed release emulsion that cures to a linerless release coating which is printable when applied to a substrate such as paper.
摘要:
Disclosed herein is an article or device such as surgical devices, needles such as surgical needles, razors, cutting/slicing devices containing a metallic surface, a primer layer disposed on the metallic surface, and a top coat disposed on the primer layer, wherein the primer layer is formed from a primer composition containing a silanol-containing organopolysiloxane resin and a crosslinking agent selected from the group consisting of alkyl silicates, boric acid, borates, acetoxysilanes, ketoximesilanes, and combinations thereof, and wherein the top coat is formed from a top coat composition containing an alkenyl functional polyorganosiloxane, an organohydrogensiloxane, and a hydrosilylation catalyst.
摘要:
In one embodiment herein there is provided a hot melt vulcanizate composition made by the process comprising: a) producing a reaction product (i) from (1) at least one first resin selected from the group consisting of thermoplastic polymer and elastomeric polymer, (2) at least one unsaturated carboxylic acid anhydride, (3) at least one alkylamine possessing two or more amine functionalities, and optionally (4) at least one free-radical generating catalyst, and wherein said reaction product (i) optionally further comprises, at least one first additive; and, optionally, b) blending said reaction product (i) with at least one second resin selected from the group consisting of thermoplastic polymer and elastomeric polymer, provided that at least one of second resin is different from at least one of first resin and, optionally, at least one second additive; c) curing said reaction product (i), wherein reaction product (i) has been blended as in (b) above, or not, to produce a hot melt vulcanizate composition; and, optionally, d) adding at least one third additive to the hot melt vulcanizate composition.
摘要:
Substantially branched alkenyl silicone polymer compositions having on average at least two branching points per molecule provide paper release compositions wherein the delamination force is reduced at all delamination speeds.