Hot melt pressure sensitive adhesive composition for attaching roofing membranes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08J-003/00
C08L-053/00
C08K-003/20
C08K-005/01
C08K-003/34
출원번호
US-0120751
(2002-04-11)
발명자
/ 주소
Fisher, Dennis K.
출원인 / 주소
Adco Products, Inc.
대리인 / 주소
Dinsmore & Shohl LLP
인용정보
피인용 횟수 :
8인용 특허 :
10
초록▼
An adhesive composition is provided for adhering together roofing materials such as EPDM rubber and thermoplastic polyolefin (TPO). The adhesive composition includes a rubbery polymer comprising a blend of a thermoplastic block copolymer selected from the group consisting of a styrene-butadiene-styr
An adhesive composition is provided for adhering together roofing materials such as EPDM rubber and thermoplastic polyolefin (TPO). The adhesive composition includes a rubbery polymer comprising a blend of a thermoplastic block copolymer selected from the group consisting of a styrene-butadiene-styrene block copolymer, a styrene-isoprene-styrene block copolymer, a styrene-ethylene/butylene-styrene block copolymer, a styrene-ethylene/propylene block copolymer and an ethylene-propylene block copolymer and combinations thereof and a polyisobutylene. Roofing articles incorporating the adhesive composition are also provided. The composition is a pressure sensitive adhesive that allows roofing articles to be applied in a peel and stick manner.
대표청구항▼
1. A hot melt pressure sensitive adhesive composition for adhering roofing sheets to a roof area comprising:a) a rubbery polymer comprising a blend of i) a thermoplastic block copolymer selected from the group consisting of a styrene-butadiene-styrene block copolymer, a styrene-isoprene-styrene bloc
1. A hot melt pressure sensitive adhesive composition for adhering roofing sheets to a roof area comprising:a) a rubbery polymer comprising a blend of i) a thermoplastic block copolymer selected from the group consisting of a styrene-butadiene-styrene block copolymer, a styrene-isoprene-styrene block copolymer, a styrene-ethylene/butylene-styrene block copolymer, a styrene-ethylene/propylene block copolymer and an ethylene-propylene block copolymer and combinations thereof and ii) a polyisobutylene;b) a compatible tackifier; andc) an amorphous polyolefin. 2. The adhesive composition as claimed in claim 1 wherein said tackifier is selected from the group consisting of hydrogenated polyalicyclic resins, aliphatic hydrocarbon resins, aromatic hydrocarbon resins, coumarone indene resins, esters of hydrogenated rosins and combinations thereof. 3. The adhesive composition as claimed in claim 1 wherein said amorphous polyolefin is selected from the group consisting of amorphous polypropylene-ethylene copolymers, amorphous polypropylene/polypropylene-ethylene copolymers, amorphous polypropylene homopolymers, amorphous polyethylene homopolymers and combinations thereof. 4. The adhesive composition as claimed in claim 1 further comprising an antioxidant. 5. The adhesive composition as claimed in claim 1 further comprising a compatible plasticizer. 6. The adhesive composition as claimed in claim 5 wherein said plasticizer is selected from the group consisting of polybutene, chlorinated paraffin and combinations thereof. 7. The adhesive composition as claimed in claim 1 further comprising a reinforcing agent. 8. The adhesive composition as claimed in claim 7 wherein said reinforcing agent comprises silica. 9. An adhesive roofing article having a composition for adhering the roofing article to a roof area comprising:a roofing article having first and second major surfaces; andan adhesive composition applied to said first major surface of said roofing article, wherein said adhesive composition comprises:a) a rubbery polymer comprising a blend of i) a thermoplastic block copolymer selected from the group consisting of a styrene-butadiene-styrene block copolymer, a styrene-isoprene-styrene block copolymer, a styrene-ethylene/butylene-styrene block copolymer, a styrene-ethylene/propylene block copolymer and an ethylene-propylene block copolymer and combinations thereof and ii) a polyisobutylene; andb) a compatible tackifier. 10. The article as claimed in claim 9 further comprising a release liner adhered to said adhesive composition. 11. The article as claimed in claim 9 wherein said tackifier is selected from the group consisting of hydrogenated polyalicyclic resins, aliphatic hydrocarbon resins, aromatic hydrocarbon resins, coumarone indene resins, esters of hydrogenated rosins and combinations thereof. 12. The article as claimed in claim 9 further comprising an amorphous polyolefin. 13. The article as claimed in claim 12 wherein said amorphous polyolefin is selected from the group consisting of amorphous polypropylene-ethylene copolymers, amorphous polypropylene/polypropylene-ethylene copolymers, amorphous polypropylene homopolymers, amorphous polyethylene homopolymers and combinations thereof. 14. The article as claimed in claim 9 wherein said thermoplastic block copolymer comprises less than 20% of the total adhesive composition by weight and wherein said polyisobutylene comprises less than 13% of the total adhesive composition by weight. 15. The article as claimed in claim 14 wherein said thermoplastic block copolymer comprises about 10-15% by weight of the total adhesive composition and wherein said polyisobutylene comprises about 1-8% by weight of the total adhesive composition. 16. The article as claimed in claim 9 wherein said adhesive composition further comprises an antioxidant. 17. The article as claimed in claim 9 wherein said adhesive composition further comprises a compatible plasticizer. 18. The article as claimed in claim 17 wherein said plasticizer is selected from the group consisting of polybutene, chlorinated paraffin and combinations thereof. 19. The article as claimed in claim 9 wherein said adhesive composition further comprises a reinforcing agent. 20. The article as claimed in claim 19 wherein said reinforcing agent comprises silica. 21. The article as claimed in claim 9 wherein said adhesive composition exhibits 180° peel strength at room temperature of at least 254 grams/in when adhered to a substrate. 22. The article as claimed in claim 9 wherein said adhesive composition supports a static load of at least 50 grams/in 2 at 70° C. for at least 96 hours when adhered to a substrate. 23. A hot melt pressure sensitive adhesive composition for adhering roofing sheets to a roof area comprising:a) a rubbery polymer comprising a blend of i) from about 20% or less by weight of the total composition of a thermoplastic block copolymer selected from the group consisting of a styrene-butadiene-styrene block copolymer, a styrene-isoprene-styrene block copolymer, a styrene-ethylene/butylene-styrene block copolymer, a styrene-ethylene/propylene block copolymer and an ethylene-propylene copolymer and combinations thereof and ii) from about 13% or less by weight of the total composition of a polyisobutylene;b) a compatible tackifier; andc) a compatible plasticizer. 24. The adhesive composition as claimed in claim 23 wherein said tackifier is selected from the group consisting of hydrogenated polyalicyclic resins, aliphatic hydrocarbon resins, aromatic hydrocarbon resins, coumarone indene resins, esters of hydrogenated rosins and combinations thereof. 25. The adhesive composition as claimed in claim 23 wherein said plasticizer is selected from the group consisting of polybutene, chlorinated paraffin and combinations thereof. 26. The adhesive composition as claimed in claim 23 wherein said thermoplastic block copolymer comprises about 10-15% by weight of the total composition and wherein said polyisobutylene comprises about 1-8% by weight of the total composition. 27. The sheet as claimed in claim 23 wherein said adhesive composition exhibits 180° peel strength at room temperature of at least 254 grams/in when adhered to a substrate. 28. The sheet as claimed in claim 23 wherein said adhesive composition supports a static load of at least 50 grams/in 2 at 70° C. for at least 96 hours when adhered to a substrate. 29. The adhesive composition as claimed in claim 23 further comprising a pigment. 30. The adhesive composition of claim 29 wherein said pigment is selected from the group consisting of titanium dioxide, carbon black, coal filler and combinations thereof. 31. The adhesive composition of claim 23 further comprising a reinforcing agent. 32. The adhesive composition of claim 31 wherein said reinforcing agent comprises silica. 33. The adhesive composition of claim 23 further comprising a flame retardant. 34. The adhesive composition of claim 33 wherein said flame retardant is selected from the group consisting of antimony oxide, decabromodiphenyl oxide, tetradecabromodiphenoxybenzene, hexabromocyclododecane, ethane-1,2-bis(pentabromophenyl), ethylenebistetrabromophthalimide and combinations thereof. 35. A hot melt pressure sensitive adhesive composition for adhering roofing sheets to a roof area comprising:a) a rubbery polymer comprising a blend of i) from about 10-15% by weight of the total composition of a thermoplastic block copolymer selected from the group consisting of a styrene-butadiene-styrene block copolymer, a styrene-isoprene-styrene block copolymer, a styrene-ethylene/butylene-styrene block copolymer, a styrene-ethylene/propylene block copolymer and an ethylene-propylene copolymer and combinations thereof and ii) from about 1-8% by weight of the total composition of a polyisobutylene;b) an amorphous polyolefin;c) a compatible tackifier;d) a compatible plasticizer;e) an antioxidant; andf) a reinforcing agent, wherein sa id adhesive composition exhibits a 180° peel strength of at least 254 grams/in at room temperature and is capable of supporting a static load of at least 50 grams/in 2 at 70° C. for at least 96 hours when adhered to a substrate.
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이 특허에 인용된 특허 (10)
Briddell Brian J. (Jackson MI) Hubbard Michael J. (Jackson MI), Adhesive composition and method for providing water-tight joints in single-ply roofing membranes.
Briddell Brian Jonathon ; Fisher Dennis Keith ; Wood James Fredrick, Adhesive composition for providing water-tight joints in single-ply roofing membranes.
Tang, Jiansheng; Carr, Joseph; McJunkins, William R.; Hubbard, Michael J.; Watkins, Jr., Carl E., Roofing membranes with pre-applied, cured, pressure-sensitive seam adhesives.
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