Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-03-30
2010-10-26
Feely, Michael J (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C523S427000, C523S428000, C525S523000, C525S524000, C525S525000, C528S119000, C528S121000, C528S422000
Reexamination Certificate
active
07820772
ABSTRACT:
An amine hardener for epoxy resins which comprises an amine adduct (A) and a low-molecular amine compound (B) as major components, wherein the molecular weight distribution of the amine adduct (A), which is defined by the ratio of the weight-average molecular weight to the number-average molecular weight, is 3 or lower and the low-molecular amine compound (B) is contained in an amount of 0.001 to 1 part by mass per 100 parts by mass of the amine adduct (A).
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Zhao et al., Conference Proceedings, Society of Plastics Engineers. Annual Technical Conferences, May 2, 1999, pp. 921-924.
Daikai Kazuhiro
Usui Taketoshi
Yamamoto Hisanao
Yamamoto Kazuhiko
Asahi Kasei Chemicals Corporation
Birch & Stewart Kolasch & Birch, LLP
Feely Michael J
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