Kraton Polymers LLC

Rohm and Haas Company

Kraton Corporation

Shanghai Hanyu Medical Technology Co., Ltd

Huixian Yang

Robert Charles Bening

Ruidong Ding

Tao Li

Zhaohui Qu

Robert Victor Slone

Xavier Muyldermans

Yin Xue

Hendrik De Groot

Yaming Niu

Miao Yang

Bing Yang

Frank Wijnand De Wit

Catherine Maris

Yufeng Dai

Bingyue Pan

Kaibo Li

Mark Govert Kalisvaart

Zhigiang Mao

The present invention discloses a novel valve clamping device and a valve clamping system. The valve clamping device includes a first clamping component, a second clamping component, and a fixing component for fixing the first clamping component and the second clamping component. The first clamping component has at least two first clamping arms. The second clamping component has a corresponding number of second clamping arms. Each of the first clamping arms and the corresponding second clamping arm may be combined into a pair of clamps. The clamping device may adopt designs of a smooth transition at the top, the clamping teeth having high clamping stability, and the fixed ring achieving the purpose of 'one thread for two uses'.

Valve clamping device

A resin composition that allows production of laminated sheets excellent in heat resistance and processability is disclosed. The resin composition comprises: a) a block copolymer, where the block copolymer comprises at least one polymer block comprising polymerized acyclic conjugated diene units, such as butadiene units, and at least one polymer block containing units like a conjugated cyclic diene such as 1,3-cyclohexadiene or monomer units characterized by unit Tg above 100&#xb0; C., b) a curing initiator, and c) optionally diene-based polymer selected from a polybutadiene polymer and the copolymer of butadiene with styrene or other styrenic monomers, c) optional additives comprising but not limited to a multi-functional co-curable additive, a diene based rubber, a halogenated or non halogenated flame retardant, an inorganic or organic filler or fiber, an antioxidant, a adhesion promotor, a film forming.

Block copolymer compositions, prepregs, and laminates made therefrom

A filling composition is disclosed, the composition comprises (i) between 4 to 20 wt. % of a selectively hydrogenated isoprene-styrene block copolymer having a structure S-EP with at least 40 wt. % polystyrene content, a total diblock apparent molecular weight of at least 160 kg/mole, the polystyrene block S has a true molecular weight in the range of 60 to 110 kg/mole, and the polyisoprene block (EP) has a molecular weight in the range of 80-100 kg/mole, (ii) an oil, and (iii) optional additives. The filling composition is characterized as having a thixotropic ratio of 2-10, a drop point of at least 200&#xb0; C., and a cone penetration at 25&#xb0; C. of &#x3c;500 dmm.

Filling composition for cables

Compositions comprising (i) a hydrogenated styrenic block copolymer, (ii) an oil, and (iii) optional additives are described herein. Compositions include but are not limited to cable fillings. The styrenic block copolymer having peak molecular weight of from about 125 to about 300 kg/mol, an oil and optional additives are described herein. The block copolymer includes a B block having vinyl content of from about 35% to about 49% and an S block having a polystyrene content of from about 28% to about 40%. The compositions may form a gel having a thixotropic ratio at 25&#xb0; C. of from about 5 to about 10 and further characterized by specific low, middle and high shear rate viscosities at 25&#xb0; C. and shear rates of 6 s, 50 sand 200 sof from 10,000 cps to 750,000 cps, 1,000 cps to 100,000 cps and 1,000 cps to 6,000 cps, respectively; a drop point from 100&#xb0; C. to 250&#xb0; C.; and a cone penetration at 25&#xb0; C. of from 300 dmm to 685 dmm.

Block copolymers for gel compositions

A microdomained aqueous emulsion polymer is provided. The polymer comprises a first domain having a Tg of from &#x2212;80 to &#x2212;10&#xb0; C. and comprising from 80 to 100 wt % of acrylic monomer; and a non-crosslinked second domain having a Tg of from 50 to 120&#xb0; C. and comprising, as polymerized unit and based on the weight of the second domain, from 50 to 100 wt % of styrenic monomer; wherein the content of the second domain ranges from greater than 6 wt % to 30 wt % of the total weight of the first domain and the second domain. The polymer is suitable for applications including adhesives and binders, especially for pressure sensitive adhesives.

Microdomained emulsion polymers

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Shanghai, China

Huixian Yang