Ito Masahiro (Mishima-gun JPX) Takada Masaharu (Osaka JPX)
출원인 / 주소
Sunstar Giken Kabushiki Kaisha (Takatsuki JPX 03)
인용정보
피인용 횟수 :
35인용 특허 :
3
초록▼
A reactive hot-melt elastic sealant composition which comprises as the main components (A) a polyurethane prepolymer which is prepared by reacting a polyether polyol having a hydroxyl group at the terminus and having a weight average molecular weight of 6,000 to 40,000 and an excess amount of a poly
A reactive hot-melt elastic sealant composition which comprises as the main components (A) a polyurethane prepolymer which is prepared by reacting a polyether polyol having a hydroxyl group at the terminus and having a weight average molecular weight of 6,000 to 40,000 and an excess amount of a polyisocyanate compound, and (B) a themoplastic urethane multi-block copolymer resin, in admixture with conventional additives, which has excellent durability, cold resistance, initial adhesive force and maintenance of adhesive force for a long period of time and is useful particularly for adhesive seal of parts in automobiles.
대표청구항▼
A reactive hot-melt elastic sealant composition comprising: (A) a first component consisting essentially of a polyurethane prepolymer which is prepared by reacting a polyether polyol having a hydroxyl group at the terminus and having a weight average molecular weight of 6,000 to 40,000 and an excess
A reactive hot-melt elastic sealant composition comprising: (A) a first component consisting essentially of a polyurethane prepolymer which is prepared by reacting a polyether polyol having a hydroxyl group at the terminus and having a weight average molecular weight of 6,000 to 40,000 and an excess amount of a polyisocyanate compound, and (B) a second component comprising a thermoplastic urethane multi-block copolymer resin, which is prepared by reacting (a) a polyfunctional ring-containing and active hydrogen-containing compound having a weight average molecular weight of 100 to 4,000 selected from the group consisting of a bisphenol resin, a terpene resin, a coumarone resin, a xylene resin, a rosin ester resin, a styrene resin, a phenol resin, a terpene phenol resin, and a rosin resin, (b) a diol or triol compound selected from the group consisting of ethylene glycol, 1,4-butanediol, 1,6-hexanediol, 1,8-octanediol, a polycarbonate diol, a polytetramethylene glycol, a polyacryldiol, a polyalkylene ether diol, a polyoxyalkylene-adduct bisphenol, trimethylolpropane, glycerin, triethylene triol, and a polyoxyalkylene ether triol, and (c) an excess amount of a polyisocyanate compound, wherein the reactive hot-melt elastic sealant composition contains 20 to 60% by weight of the polyurethane prepolymer, 5 to 30% by weight of the thermoplastic urethane multi-block copolymer resin, not more than 50% by weight of a filler, not more than 20% by weight of a plasticizer and not more than 10% by weight of other additives, and the first component is different from the second component.
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이 특허에 인용된 특허 (3)
Schucker Robert C. (Baton Rouge LA), Membrane made from a multi-block polymer comprising an oxazolidone prepolymer chain extended with a compatible second pr.
Seiberg, Miri; Huang, Mou-Tuan; Lin, Connie Beozhen; Shapiro, Stanley S.; Kirkland, Christine; Conney, Allan H., Topical anti-cancer compositions and methods of use thereof.
Tribelhorn, Ulrich; Herger Hassan, Renate R., Two part polyurethane curable composition having substantially consistent G-modulus across the range of use temperatures.
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