Hexamethylene diisocyanate residue-based compositions as fillers

Details Hexamethylene diisocyanate residue-based compositions as fillers Hexamethylene diisocyanate residue-based compositions as fillers

1996-12-27

1998-04-14

Sergent, Rabon

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

2521822, 524196, 525457, 528 49, 528 59, 528 76, 528 80, 528 85, 560157, 560158, 560330, 560355, 521 405, 521 495, C08K 5205, C08K 529, C08L 7504, C08G 1872

Patent

active

057392072

ABSTRACT:
Urethane-filled polyisocyanates are produced by (a) reacting a hexamethylene diisocyanate-containing residue having less than 10% by weight monomeric hexamethylene diisocyanate and a total NCO content of at least 25% with an alcohol containing at least one ether linkage in an equivalent ratio of isocyanate to hydroxyl groups of from about 0.9:1 to about 1.0:0.9 and (b) dissolving the product of (a) in a polyisocyanate. These urethane-filled polyisocyanates are particularly useful in the production of polyurethanes.

REFERENCES:
patent: 4507464 (1985-03-01), Rasshofer

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