Hot melt composition and process for forming the same

Details Hot melt composition and process for forming the same Hot melt composition and process for forming the same

C - Chemistry, Metallurgy

08

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402/133

C08K 5/10 (2006.01) C08G 18/08 (2006.01) C08G 18/65 (2006.01) C08G 18/72 (2006.01) C08G 18/81 (2006.01) C08K 5/52 (2006.01) C08K 5/521 (2006.01) C08L 75/04 (2006.01) C09J 175/04 (2006.01)

Patent

CA 1244184

ABSTRACT OF THE DISCLOSURE A thermoplastic hot melt composition comprising a polyurethane having at least one plasticizer reacted therein formed by heating a reaction system comprising at least one isocyanate having a functionality less than about 2.2, at least one long chain polyol, at least one chain extender and the at least one plasti- cizer at a temperature of at least about 330°F, wherein said components are present in amounts sufficient to meet the following formula: Image = 0.5 to about 7.0 wherein: A represents the equivalent weight of the long chain polyol x the moles thereof used; B represents the equivalent weight of the chain extender x the moles thereof used; C represents the equivalent weight of the isocya- nate x the moles thereof used; and D represents the grams of plasticizer. A process for forming the same is also disclosed.

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