Branched copolyesters especially suitable for extrusion blow molding
Disclosed are polyester particles adapted to be extrusion blow molded into articles having improved rheological qualities and a process for producing such particles, said particles comprising a polyester having repeat units from about 40 to 100 mol % terephthalic acid, about 80-98 mol % ethylene gly...
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| creator | KNIGHT JOSEPH F BEAVERS RANDY S CARMAN KAREN L CASSELL MICHAEL L MERCER JAMES W |
| description | Disclosed are polyester particles adapted to be extrusion blow molded into articles having improved rheological qualities and a process for producing such particles, said particles comprising a polyester having repeat units from about 40 to 100 mol % terephthalic acid, about 80-98 mol % ethylene glycol, about 0.5-10 mol % 1,4-cyclohexanedimethanol, about 3-10 mol % diethylene glycol, and about 0.05-1.0 mol % of a polyfunctional branching agent, the molecular weight gradient from core to surface of said particles satisfying the following parameters: (A) number average less than 5500, (B) weight average less than 35,000, and (C) Z average less than 110,000 |
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JOSEPH F</creatorcontrib><creatorcontrib>BEAVERS; RANDY S</creatorcontrib><creatorcontrib>CARMAN; KAREN L</creatorcontrib><creatorcontrib>CASSELL; MICHAEL L</creatorcontrib><creatorcontrib>MERCER; JAMES W</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KNIGHT; JOSEPH F</au><au>BEAVERS; RANDY S</au><au>CARMAN; KAREN L</au><au>CASSELL; MICHAEL L</au><au>MERCER; JAMES W</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Branched copolyesters especially suitable for extrusion blow molding</title><date>1995-08-15</date><risdate>1995</risdate><abstract>Disclosed are polyester particles adapted to be extrusion blow molded into articles having improved rheological qualities and a process for producing such particles, said particles comprising a polyester having repeat units from about 40 to 100 mol % terephthalic acid, about 80-98 mol % ethylene glycol, about 0.5-10 mol % 1,4-cyclohexanedimethanol, about 3-10 mol % diethylene glycol, and about 0.05-1.0 mol % of a polyfunctional branching agent, the molecular weight gradient from core to surface of said particles satisfying the following parameters: (A) number average less than 5500, (B) weight average less than 35,000, and (C) Z average less than 110,000</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Branched copolyesters especially suitable for extrusion blow molding |
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