Alternating copolymers of alkyl acrylate/ethylene/branching agents
AssigneeE. I. Du Pont de Nemours and Company
InventorAnestis Leonidas Logothetis
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Abstract
An amorphous atactic alternating branched copolymer having a glass transition temperature less than about 0.degree. C., said copolymer having repeating units of --A--B-- wherein A is a polymerized unit derived from a compound containing the group ##STR1## and where B is a polymerized unit derived from a compound containing the group CH.sub.2 =C<.
Claims3
An amorphous atactic alternating branched copolymer having a glass transition temperature of less than 0.degree. C obtained by addition polymerization by polymerizing in the presence of a Lewis acid and free radical initiator, said copolymer having repeating units of --A--B-- wherein A is the polymerized unit of the ethylenically unsaturated carbon-carbon bond of the group ##STR25##
- contained in a compound selected from the class consisting of:
- 1. ethyl acrylate,
- 2. ethylene glycol diacrylate,
- 3. maleic acid monoethyl ester, and B is the polymerized unit of the ethylenically unsaturated carbon-carbon bond of ethylene, wherein the total amount of (2) present is 0.05 t 5 mole percent;
- the amount of (3) present is either none or 1 to 10 mole percent;
- and the amount of (1) and ethylene present is complemental.
An amorphous atactic alternating branched copolymer having a glass transition temperature of less than 0.degree. C obtained by addition polymerization by polymerizing in the presence of a Lewis acid and free radical initiator, said copolymer having repeating units of --A--B-- wherein A is the polymerized unit of the ethylenically unsaturated carbon-carbon bond of the group ##STR26##
- contained in a compound selected from the class consisting of:
- 1. ethyl acrylate,
- 2. maleic acid monoethyl ester,
- 3. allyl acrylate;
- and B is the polymerized unit of the ethylenically unsaturated carbon-carbon bond of the group CH.sub.2 .dbd. C<
- contained in a compound selected from the class consisting of:
- 4. ethylene,
- 5. allyl acrylate;
- wherein the total amount of (3) or (5) present is 0.05 to 5 mole percent;
- the amount of (2) present is either none or 1 to 10 mole percent;
- and the amount of (1) and (4) present is complemental.
An amorphous atactic alternating branched copolymer having a glass transition temperature of less than 0.degree. C obtained by addition polymerization by polymerizing in the presence of a Lewis acid and free radical initiator, said copolymer having repeating units of --A--B-- wherein A is the polymerized unit of the ethylenically unsaturated carbon-carbon bond of the group ##STR27##
- contained in a compound selected from the class consisting of:
- 1. ethyl acrylate,
- 2. allyl acrylate,
- 3. chloroethyl acrylate;
- and B is the polymerized unit of the ethylenically unsaturated carbon-carbon bond of the group CH.sub.2 .dbd. C<
- contained in a compound selected from the class consisting of:
- 4. ethylene,
- 5. allyl acrylate;
- wherein the total amount of (2) or (5) present is 0.05 to 5 mole percent;
- the amount of (3) present is either none or 1 to 10 mole percent;
- and the amount of (1) and (4) present is complemental.
Dependencies are inferred from the claim text.