Process for crosslinking
First Claim
1. A process for crosslinking comprising (a) introducing into a reactor, under crosslinking conditions, a mixture comprising(i) one or more polyolefins;
- (ii) organic peroxide;
(iii) an ester, ether or ketone containing two or more unsaturated groups; and
(iv) a compound having the formula;
##STR5## wherein R=hydrogen, methyl, or ethyl;
R1 =an alkylene having 1 to 6 carbon atoms; and
R2 =an alkyl having 8 or more carbon atoms or Si(R3)3 wherein R3 is hydrogen or alkoxy having 1 to 6 carbon atoms;
each R3 is the same or different; and
at least one R3 is an alkoxy,and (b) crosslinking the polyolefin(s).
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Accused Products
Abstract
A process for crosslinking comprising (a) introducing into a reactor, under crosslinking conditions, a mixture comprising
(i) one or more polyolefins;
(ii) organic peroxide;
(iii) an ester, ether, or ketone containing two or more unsaturated groups; and
(iv) a compound having the formula: ##STR1## wherein R=hydrogen, methyl, or ethyl; R1 =an alkylene having 1 to 6 carbon atoms;
and
R2 =an alkyl having 8 or more carbon atoms or Si(R3)3 wherein R3 is hydrogen or alkoxy having 1 to 6 carbon atoms; each R3 is the same or different; and at least one R3 is an alkoxy,
and (b) crosslinking the polyolefin(s).
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Citations
10 Claims
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1. A process for crosslinking comprising (a) introducing into a reactor, under crosslinking conditions, a mixture comprising
(i) one or more polyolefins; -
(ii) organic peroxide; (iii) an ester, ether or ketone containing two or more unsaturated groups; and (iv) a compound having the formula;
##STR5## wherein R=hydrogen, methyl, or ethyl;
R1 =an alkylene having 1 to 6 carbon atoms; andR2 =an alkyl having 8 or more carbon atoms or Si(R3)3 wherein R3 is hydrogen or alkoxy having 1 to 6 carbon atoms;
each R3 is the same or different; and
at least one R3 is an alkoxy,and (b) crosslinking the polyolefin(s). - View Dependent Claims (2, 3, 4, 5, 6)
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7. A process for extrusion comprising (a) introducing into an extruder a mixture of (i) VLDPE, and, for each 100 parts by weight of VLDPE, the following components in about the following proportions:
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space="preserve" listing-type="tabular">______________________________________ Component Parts by Weight ______________________________________ (ii) dicumyl peroxide 0.2 to 2.0 (iii) triallyl cyanurate 0.1 to 1.8 or triallyl isocyanurate (iv) lauryl methacrylate 0.1 to 2.0 ______________________________________(b) extruding the mixture at a temperature in the range of about 130°
to about 260°
C., and (c) crosslinking the extrudate.
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8. A composition comprising:
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(i) one or more polyolefins;
;(ii) organic peroxide; (iii) ester, ether, or ketone containing two or more unsaturated groups; and (iv) a compound having the formula;
space="preserve" listing-type="tabular">______________________________________ Component Parts by Weight ______________________________________ (ii) dicumyl peroxide 0.2 to 2.0 (iii) triallyl cyanurate 0.1 to 1.8 or triallyl isocyanurate (iv) lauryl methacrylate 0.1 to 2.0 ______________________________________ ##STR6## wherein R=hydrogen, methyl, or ethyl;
R.sup.1 =an alkylene having 1 to 6 carbon atoms; andR2 =an alkyl having 8 or more carbon atoms or Si(R3)3 wherein R3 is hydrogen or alkoxy having 1 to 6 carbon atoms;
each R3 is the same or different; and
at least one R3 is an alkoxy, - View Dependent Claims (9)
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10. A composition comprising:
(i) VLDPE, and for each 100 parts by weight of VLDPE, the following components in about the following proportions;
##STR7##
Specification