Gel with wide distribution of Mw in mid-block

Details Gel with wide distribution of Mw in mid-block Gel with wide distribution of Mw in mid-block

2011-06-21

2011-06-21

Zemel, Irina S. (Department: 1765)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S571000, C524S575000, C524S577000, C005S652000, C005S655500

Reexamination Certificate

active

07964664

ABSTRACT:
A gelatinous elastomer comprising an A-B-A triblock copolymer and a plasticizer useful, for example, in casting fine-detail molds at a low processing temperature. The gelatinous elastomer comprises copolymer molecules having a molecular weights generally evenly distributed across a range of molecular weights rather than having a relatively narrow molecular weight distribution centered about a single molecular weight. The A-B-A triblock copolymer may include SEBS, SEEPS, or other triblock copolymers. The plasticizer may include mineral oil or other plasticizing fluids.

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Bueche, F. “Melt Viscosity of Polymers: Effect of Polydispersity” Journal of Polymer Science vol. XLIII, pp. 527-530 (1960).
Product Information Sheet for Kraton G1651 published by Kraton Polymers Inc.
Kraton Polymers, Inc. “An Introduction to KRATON Polymers Issue 3” published in 2003.

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