Polyglycidylphenyl ethers of alkylene or alkyleneoxy chains for

Details Polyglycidylphenyl ethers of alkylene or alkyleneoxy chains for Polyglycidylphenyl ethers of alkylene or alkyleneoxy chains for

1996-11-27

1997-12-30

Wilson, Donald R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528117, 549554, C08L 6300, C07D30328

Patent

active

057031959

ABSTRACT:
This invention relates to flexible epoxy resins characterized by a low ionic contamination, total chlorine content less than 0.1%. The epoxy resins are liquids at room temperature, have Tg values when cured of less than or equal to 150.degree. C., have neat resin viscosities of 25,000 cps or less at 25.degree. C., and have a structural composition comprising an oligomeric backbone of alkylene repeat units, terminated with an aromatic moiety bearing one or more epoxy functionalities. The flexible epoxy resins are used in adhesives for microelectronic applications.

REFERENCES:
patent: 3522210 (1970-07-01), Sellers et al.
patent: 4110354 (1978-08-01), Bertram et al.
patent: 5536855 (1996-07-01), Schultz et al.

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