摘要:
The present invention is directed to improved aqueous based pressure sensitive adhesive emulsion polymers. Conventional emulsion based pressure sensitive adhesives are comprised of a copolymer comprised of polymerized units of acrylic esters and ethylenically unsaturated monomers, the copolymer having a T g of from -15 to -70°C. The improvement in the aqueous based, emulsion polymerized pressure sensitive adhesives resides in the incorporation of a vinyl C 8-13 ester of a neo -acid into the copolymer present in the pressure sensitive adhesives. Such vinyl ester is formed from a mixture of propylene oligomers and such vinyl ester is represented by the chemical formula:
摘要:
The present invention relates to a composition comprising
plasticized polyvinyl chloride and, applied thereon, an aqueous emulsion based pressure sensitive adhesive comprising a copolymer having polymerized units of C 1-12 alkyl acrylates or C 1-12 alkyl methacrylates and having incorporated a vinyl C 8-13 ester of a neo-acid obtained from a feedstock of propylene oligomers.
It further relates to the use of such an aqueous emulsion based pressure sensitive adhesive for bonding of plasticized polyvinyl chloride.
摘要:
The present invention relates to a composition comprising
plasticized polyvinyl chloride and, applied thereon, an aqueous emulsion based pressure sensitive adhesive comprising a copolymer having polymerized units of C 1-12 alkyl acrylates or C 1-12 alkyl methacrylates and having incorporated a vinyl C 8-13 ester of a neo-acid obtained from a feedstock of propylene oligomers.
It further relates to the use of such an aqueous emulsion based pressure sensitive adhesive for bonding of plasticized polyvinyl chloride.
摘要:
The present invention is directed to improved aqueous based pressure sensitive adhesive emulsion polymers. Conventional emulsion based pressure sensitive adhesives are comprised of a copolymer comprised of polymerized units of acrylic esters and ethylenically unsaturated monomers, the copolymer having a T g of from -15 to -70°C. The improvement in the aqueous based, emulsion polymerized pressure sensitive adhesives resides in the incorporation of a vinyl C 8-13 ester of a neo -acid into the copolymer present in the pressure sensitive adhesives. Such vinyl ester is formed from a mixture of propylene oligomers and such vinyl ester is represented by the chemical formula: C 8-13 H 17-27 CO 2 CH=CH 2
摘要:
The present invention relates a process for the production of polyurethanes wherein a tertiary amine functionality is incorporated into the side chain of an aromatic diamine, preferably a diaminobenzamide, to form a non-fugitive catalytic polyurethane chain extender. These non-fugitive chain extruders are polyurethane catalysts that provide adequate cure without residual odor and safety hazards associated with the more traditional tertiary amine catalysts. When reacted with the isocyanate reactive group the non-tertiary amine portion of the chain extender is bound to the polymeric network. Diffusion of the catalyst species from the polyurethane has been prevented, thus negating odor and toxicity as a problem. The aromatic diamine provides enhanced polyurethane physical properties.