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
2005-01-11
2005-01-11
Cheung, William K. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S407000
Reexamination Certificate
active
06841628
ABSTRACT:
The present invention relates to a resin composition which gives a resin product with a low hygroscopic property, an adhesive for connecting a circuit member and a circuit board, and provides a resin composition, an adhesive for connecting a circuit member and a circuit board comprising (A) a polyhydroxy polyether resin represented by theformula (I):wherein R1to R8each represent H, C1-4alkyl group, C2-5alkenyl group, C1-4hydroxyalkyl group or halogen atom; Rarepresents H or C1-2alkyl group; Rbrepresents C2-13alkyl group; and n is a recurring number, or the following formula (II):wherein R9to R12each represent H, C1-6alkyl group, C1-6hydroxyalkyl group or halogen atom; Rcto Rfeach represent H, C1-6alkyl group, cyclohexyl group, aryl group, aralkyl group or halogen atom; and m is a recurring number,and (B) a three dimensionally cross-linkable resin.
REFERENCES:
patent: 4647648 (1987-03-01), Silvis et al.
patent: 10-120753 (1998-05-01), None
patent: 10-120761 (1998-05-01), None
patent: WO 9815597 (1998-04-01), None
Nagai Akira
Oota Satoru
Yusa Masami
Antonelli Terry Stout & Kraus LLP
Cheung William K.
Hitachi Chemical Co. Ltd.
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