Toughness-increased phenolic resin and preparation thereof

Details Toughness-increased phenolic resin and preparation thereof Toughness-increased phenolic resin and preparation thereof

2008-05-27

2008-05-27

Truong, Duc (Department: 1796)

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C528S125000, C525S487000

Reexamination Certificate

active

07378484

ABSTRACT:
A phenolic resin that increases its toughness by polydimethylsiloxane and a process of preparing the same is provided. Polydimethylsiloxane is added as a coupling agent in a γ-glycidoxypropyltrimethoxysilane-modified phenolic resin to improve the compatibility between polydimethylsiloxane and the phenolic resin. Then, tetraethoxysilane is added to conduct hydrolysis condensation and obtain tougher and thermally stable phenolic resin.

REFERENCES:
patent: 6372351 (2002-04-01), Takemiya et al.

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