Carboxyl group-containing polyurethane and uses thereof

Details Carboxyl group-containing polyurethane and uses thereof Carboxyl group-containing polyurethane and uses thereof

2011-05-31

2011-05-31

Niland, Patrick D (Department: 1762)

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...

C523S160000, C523S161000, C523S400000, C524S507000, C524S589000, C524S591000, C524S839000, C524S840000, C528S044000, C528S059000, C528S065000, C528S067000, C528S085000

Reexamination Certificate

active

07951868

ABSTRACT:
Disclosed is a carboxyl group-containing polyurethane containing a structure derived from a polycarbonate diol (B), the polycarbonate diol (B) having: (i) a number-average molecular weight of 500 to 50,000; (ii) an alkylene group of 8 to 18 carbon atoms in its structure; and (iii) hydroxyl groups at both ends. The carboxyl group-containing polyurethane is suitable as materials of cured products that are excellent in adhesion with substrates, low warpage, flexibility, plating resistance, soldering heat resistance and long-term reliability.

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patent: 63-182337 (1988-07-01), None
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patent: 2005-41990 (2005-02-01), None

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