Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1986-12-15
1987-10-20
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
5253293, 5253329, 525375, 528 91, 528 92, 528 93, 528 94, 528117, 528312, 528313, 528314, 528315, 528319, 528323, 528109, C08G 5944
Patent
active
047015136
ABSTRACT:
This invention relates to the use of compositions of the formula: ##STR1## wherein n is 2 to 4 and X is --O--, --S-- or ##STR2## wherein R.sub.1 is an aliphatic or aromatic moiety as a curing agent for epoxy resins to form a thermoset material which has a reduced shrinkage.
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patent: 3640957 (1972-02-01), Tomalia et al.
patent: 3749683 (1973-07-01), Tomalia et al.
patent: 4119679 (1978-10-01), Nishizawa et al.
patent: 4600763 (1986-07-01), Goel
"Polymerization with Expansion in Volume" in ACS Symposium Series, Ring Opening Polymerization, pp. 38-41, vol. 59 (1977).
"Polymeric Materials Science and Engineering", M. S. Cohen et al., vol. 54, pp. 12-17 (1986).
Angew. Chem. Internat. Edit., R. Nehring and W. Seeliger, vol. 9, pp. 460, 461 (1970).
McDowell, Jr. William W.
Nielsen Earl
Plunkett Richard P.
W. R. Grace & Co.
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