Thermoplastic elastomer composition
AssigneePolymax Tpe LLC
InventorsYun Martin LU, Xin ZHANG, Xiaofeng ZHENG, Qianqian LI
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Abstract
A thermoplastic elastomer composition and method of making the thermoplastic elastomer are disclosed. The thermoplastic elastomer may comprise a polymer blend. The polymer bland may comprise at least one bio based component of: a non-crosslinked elastomer, softener, polyethylene, and polar polymer. The softener may be from about 15 wt. % to about 50 wt. % softener. The polyethylene may be from about 3 wt. % to about 30 wt. %. The polar polymer may be from about 3.0 to about 15 wt. %.
Claims20
A thermoplastic elastomer composition, comprising,
- a polymer blend comprising from a non-crosslinked elastomer;
- from about 15 wt. % to about 50 wt. % softener;
- from about 3.0 wt. % to about 30 wt. % polyethylene;
- and
- from about 3.0 wt. % to about 15 wt. % a polar polymer.
A thermoplastic elastomer composition, comprising,
- a polymer blend comprising:
- styrenic block copolymer;
- from about 15 wt. % to about 50 wt. % softener;
- from about 5 wt. % to about 30 wt. % polyethylene;
- and
- from about 3.0 to about 20 wt. % filler, wherein the thermoplastic elastomer has melt viscosity at shear rate of 67 1/s of about 200 to about 2000 measured at about 200° C.
A thermoplastic elastomer composition, comprising,
- a polymer blend comprising at least one bio based component of:
- a styrenic block copolymer, wherein the styrenic block copolymer is selected from a group consisting of styrene-butadiene-styrene polymer (SBS), styrene-ethylene butylene-styrene (SEBS), styrene-isoprene-styrene (SIS), styrene-isoprene-butadiene-styrene (SIBS), styrene-ethylene propylene-styrene (SEPS), styrene-ethylene propylene (SEP) block copolymer, styrene-ethylene ethylene propylene-styrene (SEEPS), hydrogenated polybutadiene, hydrogenated polyisoprene, hydrogenated styrene-isoprene random copolymer, poly (styrene-[(butadiene)1-x-(ethylene-co-butylene)x}-styrene), wherein x is the hydrogenated fraction of the molecule, and hydrogenated styrene-butylene random copolymer;
- from about 15 wt. % to about 50 wt. % softener;
- from about 3 wt. % to about 30 wt. % polyethylene;
- and
- from about 3.0 wt. % to about 15 wt. % a polar polymer, wherein the thermoplastic elastomer has a weight percent ratio of styrenic block copolymer to softener, when present, from about 0.4 to about 2.5.
Dependencies are inferred from the claim text.