Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1985-01-24
1986-06-17
Welsh, Maurice J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
1563082, 1563314, 4272071, 4272082, 4272084, 528 44, 528 64, 528 73, 528 76, 528902, C09J 502
Patent
active
045954453
ABSTRACT:
The present invention relates to the use of thermosetting polyurethane urea reactive adhesive compositions which are stable at ambient temperature but rapidly set at higher temperatures, wherein the adhesive comprises stabilized finely-divided polyisocyanates of retarded reactivity of which 0.1 to 25% of the NCO-groups are surface-modified and higher and/or lower molecular polyamines (optionally with polyols as additional reactive components). An important feature of these thermosetting reactive adhesive compositions is their capacity for storage at ambient temperature and their spontaneous increase in viscosity at relatively low heating temperatures which prevents the adhesive from running off during the heating period when applied to vertical surfaces.
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patent: 4400978 (1983-08-01), Bos
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Dollhausen Manfred
Grogler Gerhard
Hess Heinrich
Hombach Rudolf
Kopp Richard
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Welsh Maurice J.
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