Heat and hot water resistant polyurethane sealant

Details Heat and hot water resistant polyurethane sealant Heat and hot water resistant polyurethane sealant

2005-02-15

2005-02-15

Sergent, Rabon (Department: 1711)

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...

C524S102000, C524S188000, C524S267000, C524S436000, C524S714000, C524S730000, C524S731000, C524S779000, C525S453000, C528S028000, C528S076000, C528S077000

Reexamination Certificate

active

06855765

ABSTRACT:
A two-component polyurethane sealant composition is described. The polyurethane sealant of the invention exhibits improved resistance to degradation by heat and hot water. The composition of the invention includes a novel hindered amine antioxidant.

REFERENCES:
patent: 4267044 (1981-05-01), Kroplinski et al.
patent: 4624996 (1986-11-01), Rizk et al.
patent: 4870150 (1989-09-01), Bandlish et al.
patent: 5688860 (1997-11-01), Croft
patent: 5981683 (1999-11-01), Gillis et al.
patent: 6455598 (2002-09-01), Gerace et al.
patent: 6583195 (2003-06-01), Sokol

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