Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1998-05-19
2000-12-12
Truong, Duc
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528 86, 528491, 528497, 528503, C08G 6378
Patent
active
061600830
ABSTRACT:
The specification discloses a method for making low softening point modified terpene-phenol resins having improved properties. In the process, phenol is reacted in an organic solvent containing a Lewis acid catalyst with an acyclic mono-unsaturated olefin and terpene under reaction conditions sufficient to produce an alkyl-modified terpene-phenol resin at a relatively high yield having a softening point in the range of from about 70.degree. to about 110.degree. C., a Gardner color below about 6 and a polydispersity index below about 1.5. Due to its relatively low Gardner color number, the resin may be used substantially as produced avoiding additional decoloration steps which result in reduced product yield and increased cost. The product contains less volatile components and has improved compatibility with A-B and A-B-A copolymers as compared with many conventional modified terpene-phenol resins.
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Deshpande Abhay K.
Thompson Kerry L.
Arizona Chemical Company
Truong Duc
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