Sealant having improved dynamic durability

Details Sealant having improved dynamic durability Sealant having improved dynamic durability

2007-11-13

2007-11-13

Moore, Margaret G. (Department: 1712)

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...

C524S296000, C524S425000, C524S431000, C528S016000, C528S017000, C528S018000, C528S021000, C528S901000

Reexamination Certificate

active

11101576

ABSTRACT:
An object of the present invention is to provide a low-modulus, high elongation sealant having improved dynamic durability, desirable mechanical properties, and good workability. The present invention provides a sealant containing an oxyalkylene polymer (A) having a number-average molecular weight of 20,000 to 50,000 and 0.8 or more of reactive silicon groups per molecule on average; 10 parts by weight or more of a plasticizer (B) per 100 parts by weight of the polymer (A); a filler (C); and a curing catalyst (D). This sealant has an improved durability and can achieve the above-described object.

REFERENCES:
patent: 5648427 (1997-07-01), Fujita et al.
patent: 6077896 (2000-06-01), Yano et al.
patent: 6410640 (2002-06-01), Fukunaga et al.
patent: 0 520 426 (1992-12-01), None
patent: 0 546 310 (1993-06-01), None
patent: 0 902 042 (1999-03-01), None

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