Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-03-22
2005-03-22
Sergent, Rabon (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S009000, C524S013000, C524S015000, C524S016000
Reexamination Certificate
active
06869989
ABSTRACT:
Disclosed is a process for modifying cashew nut shell liquid (CNSL) which involves the steps of subjecting the CNSL to ozonolysis to form ozonolysis reaction products, followed by reduction of the ozonolysis reaction products to give a mixture of phenolic components and aldehydes. In a preferred embodiment, the process involves reacting CNSL with ozone to form a mixture containing ozonolysis reaction products, and then treating the mixture under reducing conditions to form a further mixture containing phenolic components with an eight carbon chain having a terminal —CHO group and alkyl components of varying lengths with either one or two terminal —CHO groups. The resulting CNSL aldehydes may be used to form adhesives for use in the manufacture of composites such as wood particle board.
REFERENCES:
patent: 2 617 845 (1989-01-01), None
patent: 45 026750 (1970-06-01), None
patent: 59 076580 (1984-05-01), None
patent: 0078699 (2000-12-01), None
A. Yasuhara et al., “Analysis of aldehydes and ketones in the headspace of heated pork fat,”Journal of Food Science, 54:1471-1472, 1484 (1989).
H. Itokawa et al., “Antitumor principles from Ginkgo bilboa L,”Chemical and Pharmaceutical Bulletin, 35:3016-3020 (1987).
E. H. Pryde et al., “Ozonization of soybean oil. The preparation and some properties of aldehyde oils,”J. Amer. Oil Chemists ' Soc., 38:375-379 (1961).
Derwent Abstract XP00213196, filed May 1, 1984, (JP 59 076580 A).
Derwent Abstract XP00213197, filed Jun. 29, 1970, (JP 45 026750).
Khan Mohammed Lokman
Salisbury Richard James
Tomkinson Jeremy
Cambridge Biopolymers Limited
Heslin Rothenberg Farley & & Mesiti P.C.
Rajguru U. K.
Sergent Rabon
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