One-part moisture-curing orethane adhesive

Details One-part moisture-curing orethane adhesive One-part moisture-curing orethane adhesive

1994-02-01

1995-10-17

Sweet, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524149, 524230, 524297, 524298, 524314, 524423, 524425, 524451, 524500, 524590, C08K 520

Patent

active

054591856

ABSTRACT:
In a one-part (one-pack) moisture-curing urethane adhesive comprising a urethane prepolymer having isocyanate groups (NCO) at the terminus, said urethane prepolymer being a reaction product of a polyol and an excess amount of a polyisocyanate, the improvement which comprises adding 0.01 to 5% by weight of a gelling agent based on the whole amount of the adhesive, and optionally adding a thermoplastic urethane multi-block copolymer resin and a thixotropic agent selected from the group consisting of a hydrophilic colloidal silica and a polysiloxane-polyoxyalkylene copolymer. The adhesive of the present invention can obviate float or slippage of glass in the adhesive application of window glass of automobiles.

REFERENCES:
patent: 4443577 (1984-04-01), Higgins et al.
patent: 5087661 (1992-02-01), Aoki et al.
patent: 5288797 (1994-02-01), Khalil et al.
Derwent Publications Ltd., Database WPI Week 9412, AN 98039 & JP-A-6 049 428 (Sunstar Giken) 22 Feb. 1994.

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