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US 6,670,042 B2Granted
Insulating film
AssigneeSumitomo Chemical Company, Limited
InventorsMotonobu Furuta, Takanari Yamaguchi
Life of this patent
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Abstract
Provided is an industrially advantageous insulating film obtainable from a resin composition comprising (A) 100 parts by weight of a polyphenylene oxide having a structural unit of the following formula (1): and (B) 0.1 to 60 parts by weight of a copolymer having a functional group reactive with the above-mentioned polyphenylene oxide.
Claims9
Insulating film obtained by using a resin composition comprising:
- (A) 100 parts by weight of a polyphenylene oxide having a structural unit of the following formula (1):
- wherein, R1 and R2 represent each independently hydrogen or a hydrocarbon group which may have a substituent and has 1 to 20 carbon atoms in total, and
- (B) 0.1 to 60 parts by weight of a copolymer having a functional group reactive with said polyphenylene oxide, wherein the copolymer (B) has heat of fusion of less than 3 J/g.
Dependencies are inferred from the claim text.