has been granted a patent for a hot melt adhesive comprised of a blend of 5%-40% weight of a styrene-butadiene-styrene block copolyme; the styrene-butadiene-styrene block copolymer
is a substantially linear styrene-butaliene-styrene block copolymer
having a styrene content of 38%-50% by weight and 0% diblock, and a melt flow index of 3 g/10 min to 11 g/10 min at 190[degrees] C with a 5 kg weight, and a polydispersity of 1.
We've had to develop an innovative spin-on top coat for neutralizing the surface energy at the top interface of a block copolymer
Styrenic block copolymers
supplier Kraton Performance Polymers Inc (NYSE:KRA) announced on Tuesday the initiation of a project assessment to identify options for building a new 30 Kta hydrogenated styrenic block copolymer
(HSBC) plant in Asia.
The polymers made with these techniques are not only defined by their composition, molecular weight, and polydispersity index, but also by their synthesis method--demonstrated with two AB block copolymer
dispersants prepared by GTP and ATRP.
Eastman's technical study reports that depending on the specific performance demands of a given HMPSA application, it is now possible to provide substantial substitution of isoprene monomers in an adhesives formulation using a blend of the KRATON Polymers SIBS (styrene-isoprene-butadiene-styrene) block copolymer
and SBS (styrene-butadiene-styrene) block copolymer
Septon 4077 is a hydrogenated styrenic block copolymer
formulated to offer a soft touch, rubbery feel, Shore A hardness from 5 to 95, good weatherability, and ozone resistance.
Combinatorial methods have been successfully applied by researchers at NIST to observe novel morphologies and to establish fundamental kinetic relationships in the ordering properties of block copolymer
The secret lies in a hybrid molecule known as a block copolymer
, which Noda mixes with latex particles when making his elastomer.
Nanostructured Thin Films for Advanced Patterning
Patent 9,181,426 (November 10, 2015), "Method of Controlling Orientation of Domains in Block Copolymer
Films," Joy Cheng, Ho-Cheol Kim, Daniel P.
Key statement: The present invention provides a polymeric composition that includes a coupled block copolymer
having a plurality of arms comprising at least two blocks of a monovinylaromatic hydrocarbon that are located on at least two of the plurality of arms, and at least one block of a conjugated diene located on at least one of the plurality of arms, and optionally one or more block copolymers
comprising at least one block of monovinylaromatic hydrocarbon and at least one block of a conjugated diene, the block copolymer
may be selected from linear copolymers, linear triblock copolymers, multiarm coupled block copolymers
, and mixtures thereof.
The composition of the block copolymer
was varied with regard to the number of HS, the concentration of HS, the position of the HS, and the molecular weight of the copolymers.