Adhesive compositions containing low molecular weight polymer additives
First Claim
1. An adhesive composition containing a blend of (i) adhesive polymers or copolymers prepared from monomers selected from the group consisting of styrene, butadiene, acrylonitrile, ethylene, vinyl acetate, acrylic acid, esters of acrylic acid, methacrylic acid and esters of methacrylic acid and (ii) from about 1 to about 55% on a dry weight basis of a polymeric additive wherein said polymeric additive is polymerized from monomers selected from the group consisting of C1 -C20 alkyl and cycloalkyl acrylates, C1 -C20 alkyl and cycloalkyl methacrylates, free-radical polymerizable olefinic acids, and other ethylenically unsaturated monomers selected from the group consisting of styrene, alpha-methyl styrene, vinyl toluene, acrylonitrile, methacrylonitrile, ethylene, vinyl acetate, vinyl chloride, vinylidene chloride, acrylamide, methacrylamide, 2-cyanoethyl acrylate, 2-cyanoethyl methacrylate, dimethylaminoethyl methacrylate, dimethylaminopropyl methacrylate, t-butylaminoethyl methacrylate, glycidyl acrylate, glycidyl methacrylate, benzyl acrylate, benzyl methacrylate, phenyl acrylate and phenyl methacrylate, said polymeric additive having a number average molecular weight less than about 35,000 and a softening point greater than about 40°
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Accused Products
Abstract
Adhesive compositions containing a polymeric additive which is polymerized from monomers selected from C1 -C20 alkyl and cycloalkyl acrylate, C1 -C20 alkyl and cycloalkyl methacrylate, free-radical polymerizable olefinic acids, and optionally other ethylenically unsaturated monomers wherein said polymeric additive has a number average molecular weight less than about 35,000 and a softening point greater than about 40° C.
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Citations
14 Claims
- 1. An adhesive composition containing a blend of (i) adhesive polymers or copolymers prepared from monomers selected from the group consisting of styrene, butadiene, acrylonitrile, ethylene, vinyl acetate, acrylic acid, esters of acrylic acid, methacrylic acid and esters of methacrylic acid and (ii) from about 1 to about 55% on a dry weight basis of a polymeric additive wherein said polymeric additive is polymerized from monomers selected from the group consisting of C1 -C20 alkyl and cycloalkyl acrylates, C1 -C20 alkyl and cycloalkyl methacrylates, free-radical polymerizable olefinic acids, and other ethylenically unsaturated monomers selected from the group consisting of styrene, alpha-methyl styrene, vinyl toluene, acrylonitrile, methacrylonitrile, ethylene, vinyl acetate, vinyl chloride, vinylidene chloride, acrylamide, methacrylamide, 2-cyanoethyl acrylate, 2-cyanoethyl methacrylate, dimethylaminoethyl methacrylate, dimethylaminopropyl methacrylate, t-butylaminoethyl methacrylate, glycidyl acrylate, glycidyl methacrylate, benzyl acrylate, benzyl methacrylate, phenyl acrylate and phenyl methacrylate, said polymeric additive having a number average molecular weight less than about 35,000 and a softening point greater than about 40°
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6. A composition of claim 6 wherein said adhesive composition comprises copolymers of ethylene and vinyl acetate.
Specification
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- Resources
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Current AssigneeRohm and Haas Company (Dow, Inc.)
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Original AssigneeRohm and Haas Company (Dow, Inc.)
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InventorsWood, Timothy G., Whitmire, Judith L., Lesko, Patricia M.
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Primary Examiner(s)Ivy, C. Warren
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Assistant Examiner(s)SAROFIM, NABIL F
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Application NumberUS07/344,506Time in Patent Office334 DaysField of Search526/317.1, 526/931, 525/221, 525/208, 525/210, 525/216, 525/217, 525/219, 525/227, 525/228US Class Current525/221CPC Class CodesC08F 220/12 of monohydric alcohols or p...C08L 2666/04 Macromolecular compounds ac...C09J 133/08 Homopolymers or copolymers ...
