# US 5,349,009 A · Water-based construction adhesive mastic > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,349,009 A - Document ID: US5349009A - Status: Granted - Kind: A - Application number: 07/986,957 - Filed: 1992-12-08 - Granted: 1994-09-20 - Earliest claimed: 1992-12-08 - Assignees: Air Products and Chemicals, Inc. - Inventors: Wayne R. Furlan - Web page: https://patentgrep.com/patent/US5349009A ## CPC - C09J 131/04: Homopolymers or copolymers of vinyl acetate - C08L 31/04: Homopolymers or copolymers of vinyl acetate - C08L 2205/02: containing two or more polymers of the same C08L -group - C08L 2666/04: Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract A water-based construction adhesive composition containing an aqueous emulsion polymer binder which comprises a blend, based on 100 weight parts of polymer solids, of 25 to 75 parts aqueous emulsion vinyl acetate/-ethylene copolymer and 75 to 25 parts aqueous emulsion vinyl acetate homopolymer. ## Claims ### Claim 1 In a water based construction adhesive mastic composition comprising polymer binder, plasticizer, filler and thixotrope in an aqueous medium, the improvement which comprises as the polymer binder 25 to 75 wt % (polymer solids) of an aqueous vinyl acetate/ethylene copolymer emulsion and 75 to 25 wt % (polymer solids) of an aqueous vinyl acetate homopolymer emulsion, based on 100 parts by weight polymer binder. ### Claim 2 (depends on 1) The composition of claim 1 in which the vinyl acetate/ethylene copolymer emulsion is 50 to 66 wt % solids, the copolymer consisting essentially of 70-85 wt % vinyl acetate and 15-30 wt % ethylene. ### Claim 3 (depends on 2) The composition of claim 2 in which the copolymer emulsion is polyvinyl alcohol stabilized. ### Claim 4 (depends on 3) The composition of claim 3 in which the copolymer emulsion is 60-66 wt % solids and the copolymer has a Tg of -10.degree. to 0.degree. C. ### Claim 5 (depends on 1) The composition of claim 1 in which the vinyl acetate homopolymer emulsion is 50-60 wt % solids and the homopolymer has a Tg of 30.degree.-40.degree. C. ### Claim 6 (depends on 5) The composition of claim 5 in which the homopolymer emulsion is polyvinyl alcohol stabilized. ### Claim 7 (depends on 1) The composition of claim 1 in which (a) the vinyl acetate/ethylene copolymer emulsion is 60-66 wt % solids and polyvinyl alcohol stabilized, the copolymer consisting essentially of 70-85 wt % vinyl acetate and 15-30 wt % ethylene, and (b) the vinyl acetate homopolymer emulsion is 50-60 wt % solids and polyvinyl alcohol stabilized, the homopolymer having a Tg of 30.degree.-40.degree. C. ### Claim 8 (depends on 1) The composition of claim 1 which comprises per one hundred parts of polymer binder (a) 50-100 parts calcium carbonate filler, b) 0-50 parts clay filler, (c) 5-15 parts water soluble alkylaryl poly(ethyleneoxy) ethanol plasticizer, (d) 10-15 parts polyacrylate thixotrope, and (e) 15-20 parts reinforcing hydrocarbon resin. ### Claim 9 (depends on 1) The composition of claim 1 which comprises per one hundred parts of polymer binder (a) 85-135 parts calcium carbonate filler, (b) 40-90 parts clay filler, (c) 5-15 parts water soluble alkylaryl poly(ethyleneoxy) ethanol plasticizer, (d) 10-15 parts polyacrylate thixotrope, and (e) 15-20 parts reinforcing hydrocarbon resin. ### Claim 10 (depends on 1) The composition of claim 1 in which the polymer binder is about 50 wt % vinyl acetate/ethylene copolymer emulsion and about 50 wt % vinyl acetate homopolymer emulsion. ### Claim 11 (depends on 7) The composition of claim 7 in which the polymer binder is about 50 wt % vinyl acetate/ethylene copolymer emulsion and about 50 wt % vinyl acetate homopolymer emulsion. ### Claim 12 (depends on 11) The composition of claim 11 which comprises per one hundred parts of polymer binder (a) 50-100 parts calcium carbonate filler, (b) 0-50 parts clay filler, (c) 5-15 parts water soluble alkylaryl poly(ethyleneoxy) ethanol plasticizer, (d) 10-15 parts polyacrylate thixotrope, and (e) 15-20 parts reinforcing hydrocarbon resin. ### Claim 13 (depends on 11) The composition of claim 11 which comprises per one hundred parts of polymer binder (a) 85-135 parts calcium carbonate filler, (b) 40-90 parts clay filler, (c) 5-15 parts water soluble alkylaryl poly(ethyleneoxy) ethanol plasticizer, (d) 10-15 parts polyacrylate thixotrope, and (e) 15-20 parts reinforcing hydrocarbon resin. ### Claim 14 (depends on 11) The composition of claim 11 which comprises per one hundred parts of polymer binder (a) 75 parts calcium carbonate filler, (b) 25 parts clay filler, (c) 10 parts water soluble alkylaryl poly(ethyleneoxy) ethanol plasticizer, (d) 11.5 parts polyacrylate thixotrope, and (e) 18.75 parts reinforcing hydrocarbon resin. ### Claim 15 (depends on 11) The composition of claim 11 which comprises per one hundred parts of polymer binder (a) 110 parts calcium carbonate filler, (b) 65 parts clay filler, (c) 10 parts water soluble alkylaryl poly(ethyleneoxy) ethanol plasticizer, (d) 11 parts polyacrylate thixotrope, and (e) 18.75 parts reinforcing hydrocarbon resin. ### Claim 16 An aqueous adhesive composition comprising a blend of 25-75 wt % aqueous vinyl acetate/ethylene copolymer emulsion and 75-25 wt % vinyl acetate homopolymer emulsion, wt % based on polymer solids, and a plasticizer at 5-15 parts per 100 parts polymer solids. ### Claim 17 (depends on 16) The composition of claim 16 in which the plasticizer is a water soluble alkylaryl poly(ethyleneoxy) ethanol. ### Claim 18 (depends on 16) The composition of claim 16 in which (a) the vinyl acetate/ethylene copolymer emulsion is 60-66 wt % solids and polyvinyl alcohol stabilized, the copolymer consisting essentially of 70-85 wt % vinyl acetate and 15-30 wt % ethylene, and (b) the vinyl acetate homopolymer emulsion is 50-60 wt % solids and polyvinyl alcohol stabilized, the homopolymer having a Tg of 30.degree.-40.degree. C. ### Claim 19 (depends on 18) The composition of claim 18 in which the plasticizer is a water soluble alkylaryl poly(ethyleneoxy) ethanol.