# US 2008/0188623 A1 · Tap-mediated, rheology-modified polymers and preparation methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0188623 A1 - Document ID: US20080188623A1 - Status: Published application - Kind: A1 - Application number: 11/592,524 - Filed: 2006-11-03 - Published: 2008-08-07 - Earliest claimed: 2005-11-04 - Assignees: Dow Global Technologies LLC; Queen's University at Kingston - Inventors: Bharat I. Chaudhary; Malcolm F. Finlayson; Stephen F. Hahn; Stephane Costeux; John Scott Parent; Saurav S. Sengupta - Web page: https://patentgrep.com/patent/US20080188623A1 ## CPC - C08F 8/40: Introducing phosphorus atoms or phosphorus-containing groups - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS ## Abstract The present invention yields a triallyl phosphate (TAP)-mediated, rheology-modified polymer being prepared in a reaction from a reaction mixture made from or containing (a) a free-radical, chain-scissionable organic polymer and (b) TAP, wherein the TAP-mediated, rheology-modified polymer has extensional viscosity at Hencky strains above one greater than that of the free-radical, chain-scissionable organic polymer and/or a Relaxation Spectra Index (RSI) greater than that of the free-radical, chain-scissionable organic polymer. ## Claims ### Claim 1 A triallyl phosphate-mediated, rheology-modified polymer prepared from a reaction mixture comprising: (a) a free-radical, chain-scissionable organic polymer, and (b) triallyl phosphate, wherein the triallyl phosphate-mediated, rheology-modified polymer has a Relaxation Spectra Index (RSI) greater than that of the free-radical, chain-scissionable organic polymer. ### Claim 2 (depends on 1) The triallyl phosphate-mediated, rheology-modified polymer according to claim 1 wherein the reaction mixture further comprises a non-scissionable polymer. ### Claim 3 (depends on 1) The triallyl phosphate-mediated, rheology-modified polymer according to claim 1 wherein the triallyl phosphate-mediated, rheology-modified polymer includes no more than 10 weight percent gel. ### Claim 4 (depends on 1) The triallyl phosphate-mediated, rheology-modified polymer according to claim 1 wherein the triallyl phosphate-mediated, rheology-modified polymer includes no more than 5 weight percent gel. ### Claim 5 A triallyl phosphate-mediated, rheology-modified polymer prepared from a reaction mixture comprising: (a) a first quantity of a first free-radical, chain-scissionable organic polymer, wherein the polymer is pendantly-grafted with triallyl phosphate, and (b) a second quantity of said first free-radical, chain-scissionable organic polymer or a quantity of a second free-radical chain-scissionable organic polymer, wherein the triallyl phosphate-mediated, rheology-modified polymer has a Relaxation Spectra Index (RSI) greater than that of the first free-radical, chain-scissionable organic polymer. ### Claim 6 (depends on 5) The triallyl phosphate-mediated, rheology-modified polymer according to claim 5 wherein the triallyl phosphate-mediated, rheology-modified polymer includes no more than 10 weight percent gel. ### Claim 7 (depends on 5) The triallyl phosphate-mediated, rheology-modified polymer according to claim 5 wherein the triallyl phosphate-mediated, rheology-modified polymer includes no more than 5 weight percent gel. ### Claim 8 A process for preparing a triallyl phosphate-mediated, rheology-modified polymer comprising the step of reacting: (a) a free-radical, chain-scissionable organic polymer, and (b) triallyl phosphate, wherein the triallyl phosphate-mediated, rheology-modified polymer has a Relaxation Spectra Index (RSI) greater than that of the free-radical, chain-scissionable organic polymer. ### Claim 9 (depends on 8) The process according to claim 8 wherein the triallyl phosphate-mediated, rheology-modified polymer includes no more than 10 weight percent gel. ### Claim 10 (depends on 8) The process according to claim 8 wherein the triallyl phosphate-mediated, rheology-modified polymer includes no more than 5 weight percent gel. ### Claim 11 (depends on 1) An article of manufacture prepared from a triallyl phosphate-mediated, rheology-modified polymer according to claim 1. ### Claim 12 (depends on 11) The article of manufacture according to claim 11 wherein the article is a foam. ### Claim 13 (depends on 12) The article of manufacture according to claim 12 wherein the free-radical, chain-scissionable organic polymer is a propylene copolymer comprising at least 50 weight percent of units derived from propylene, based on the total propylene copolymer, and units derived from unsaturated monomers. ### Claim 14 (depends on 13) The article of manufacture according to claim 13 wherein the unsaturated monomers are selected from the group consisting of ethylene, acrylate, vinyl acetate and combinations thereof. ### Claim 15 (depends on 11) An article of manufacture according to claim 11 wherein the propylene copolymer has a melt flow rate in the range of from about 0.5 grams per 10 minutes to about 8 grams per 10 minutes and a Rheotens melt strength of at least about 5 centiNewtons. ### Claim 16 A triallyl phosphate-mediated, rheology-modified polymer prepared from a reaction mixture comprising: (a) a free-radical, chain-scissionable organic polymer, and (b) triallyl phosphate, wherein the triallyl phosphate-mediated, rheology-modified polymer has extensional viscosity at Hencky strains above one greater than that of the free-radical, chain-scissionable organic polymer. ### Claim 17 A triallyl phosphate-mediated, rheology-modified polymer prepared from a reaction mixture comprising: (a) a first quantity of a first free-radical, chain-scissionable organic polymer, wherein the polymer is pendantly-grafted with triallyl phosphate, and (b) a second quantity of said first free-radical, chain-scissionable organic polymer or a quantity of a second free-radical chain-scissionable organic polymer, wherein the triallyl phosphate-mediated, rheology-modified polymer has extensional viscosity at Hencky strains above one greater than that of the first free-radical, chain-scissionable organic polymer. ### Claim 18 A process for preparing a triallyl phosphate-mediated, rheology-modified polymer comprising the step of reacting: (a) a free-radical, chain-scissionable organic polymer, and (b) triallyl phosphate, wherein the triallyl phosphate-mediated, rheology-modified polymer has extensional viscosity at Hencky strains above one greater than that of the free-radical, chain-scissionable organic polymer. ### Claim 19 (depends on 16) An article of manufacture prepared from a triallyl phosphate-mediated, rheology-modified polymer according to claim 16. ### Claim 20 (depends on 19) An article of manufacture according to claim 19 wherein the article is a wire/cable.