Modification of (co)polymers employing organic peroxides

Details Modification of (co)polymers employing organic peroxides Modification of (co)polymers employing organic peroxides

1988-12-13

1991-08-06

Lipman, Bernard

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525391, 525392, C08F 808

Patent

active

050378929

ABSTRACT:
Organic (co)polymers, including saturated (co)polymers, are modified by contacting them with an organic peroxide and decomposing the peroxide. Use is made of an organic peroxide having the general formula: R--(O--O--CHR.sup.1 --CR.sup.2 .dbd.CR.sup.3 R.sup.4)N, wherein N is 1, 2 or 3; R.sup.1 is H, C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 alkylene; R.sup.2, R.sup.3 and R.sup.4 are, independently, H or C.sub.1 -C.sub.4 alkyl; two of the substituents R.sup.1 -R.sup.4 together may form C.sub.3 -C.sub.12 alkylene; and, when N is 1, R is an optionally hydroxyl substituted C.sub.4 -C.sub.18 T.alkyl, P-menth-8-yl, C.sub.5 -C.sub.18 T.alkenyl, 1-vinylcyclohexyl or a group of the formula: --C(CH.sub.3)2--C.sub.6 HJ(5--M)--R.sup.5 (M), wherein M is 0, 1 or 2 and R.sup.5 is isopropenyl or 2-hydroxyisopropyl; when N is 2, R is a C.sub.8 -C.sub.12 alkylene or alkynylene group having a tertiary structure at both ends, or a group having the formula: --(C)CH.sub.3)2)2--C.sub.6 H(4--X)--R.sup.5 (X), wherein X is 0 or 1; and when N is 3, R is 1,2,4-or 1,3,5-triisopropylbenzene-alpha, alpha"-triyl, i.a., 3-allylperoxy-3,3-dimethylpropene according to a preferred embodiment the modification is carried out in the presence of a coagent, whereby the advantageous polymer properties, such as adhesion to polar materials, are further enhanced.

REFERENCES:
patent: 2516649 (1950-07-01), Rust et al.
patent: 4705888 (1987-11-01), Meijer et al.
patent: 4774293 (1988-09-01), Beijleveld et al.
patent: 4833209 (1989-05-01), Beijleveld et al.
patent: 4837287 (1989-06-01), Meijer
R. C. Keller, "Peroxide Curing of Ethylene-Propylene Elastomers", Rubber and Chemical Technology, vol. 61, pp. 238-254.
W. Hoffman, "Crosslinking Agents in Ethylene-Propylene Rubbers", Progress in Rubber and Plastics Technology, vol 1, No. 2, pp. 18-50, (1985).
M. Tomoi et al., "Synethesis and Crosslinking of Polystyrenes Containing a Pendant Epoxy Group", Makromol. Chem., Rapid commun., 7, pp. 143-148, (1986).
F. Svec et al., "Reactive Polymers I.", Die Angewandte Makromolekulare Chemie, 48, pp. 135-143, (1975).
E. Montaudon et al., "Addition radicalaire au peroxyde d'allyle et de t-butyle: synthese d'e'poxydes fonctionnels", Bull. Soc. Chim. France, pp. 198-202, (1985) and English-language translation.
"Incorporation of Amine Antioxidants into Natural Rubber Netwok Via Epoxide Groups", Journal of Polymer Science: Polymer Letters Edition, vol. 22, pp. 327-334, (1984).
A. Ravve et al., "Studies on graftin Glycidyl Methacrylate on Polyvinyl Chloride Backbones", Journal of Polymer Science, vol. 61, pp. 185-194, (1962).
C. S. L. Baker et al., "Epoxidized Natural Rubber-A New Synthetic Polymer?, Rubber World", 191(6), pp. 15-20, (1985).
"Challenging Time for Natural Rubber", Rubber Developments, vol. 38, No. 2, pp. 48-50, (1985).
F. P. Greenspan, "E. Epoxidation", Chemical Reaction of Polymers, Chapter II, pp. 152 et. seq., (1964).

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