Patent classifications
C08L93/04
High flow, hydrogenated styrene-butadiene-styrene block copolymers and applications
The invention relates to unique applications for the novel high melt flow, low viscosity, selectively hydrogenated styrene-butadiene-styrene (hSBS) or selectively hydrogenated controlled distribution styrene-butadiene/styrene-styrene (hSBSS) block copolymers, wherein the melt flow rate of said block copolymer is at least 100 g/10 min. at 230° C. under 2.16 kg mass according to ASTM D1238. These block copolymers are novel and have the highest melt flow rate of any styrenic block copolymer also possessing high strength and elasticity. It has applications that prior to the present invention were not normally possible due to the normal low melt flow rate of styrenic block copolymers. The present invention also encompasses various fields of use such as a fiberglass hSBS or hSBSS reinforced mat, low viscosity hSBS or hSBSS coatings for industrial uses, hot melt adhesives prepared from hSBS or hSBSS blended with polyalpha-olefins, and elastic film, fiber, and nonwoven constructions using hSBS or hSBSS.
Thermoplastic pavement marking composition and method
A composition of matter suitable for use as a road marking substance and a method thereof provides for the steps of mixing a binder mixture with a filler mixture, heating the mixed ingredients while mixing into a homogenous molten mixture and then extruding the molten mixture. The extruded material is cooled, cut into individual pellets, coated with an anti-clumping coating and packaged for use in making a road marking substance in situ. The binder can be alkyd-based or hydrocarbon based. The binder includes rosin resins, wax and a plasticizer, and a hydrocarbon resin is added for the hydrocarbon-based binder. The filler contains titanium dioxide, a pigment (if necessary) and ground calcium carbonate.
Thermoplastic pavement marking composition and method
A composition of matter suitable for use as a road marking substance and a method thereof provides for the steps of mixing a binder mixture with a filler mixture, heating the mixed ingredients while mixing into a homogenous molten mixture and then extruding the molten mixture. The extruded material is cooled, cut into individual pellets, coated with an anti-clumping coating and packaged for use in making a road marking substance in situ. The binder can be alkyd-based or hydrocarbon based. The binder includes rosin resins, wax and a plasticizer, and a hydrocarbon resin is added for the hydrocarbon-based binder. The filler contains titanium dioxide, a pigment (if necessary) and ground calcium carbonate.
Agglomerated silica, rubber composition, tire, producing method of agglomerated silica, and producing method of rubber composition
Agglomerated silica is obtained by mixing silica with a rosin resin to be agglomerated.
Rubber composition for conveyor belts, rubber for conveyor belt covers, and conveyor belt
Rubber composition for conveyor belts containing (A) a rubber component that contains a styrene-butadiene rubber mixture having a mean styrene content of from 28 to 35% by mass, which contains one or more types of styrene-butadiene rubber having a styrene content of from 20 to 25% by mass and one or more types of styrene-butadiene rubber having a styrene content of from more than 25 to 50% by mass, and at least one selected from butadiene rubber and natural rubber in a specific ratio, (B) silica, (C) resin, and (D) specific carbon black in a specific ratio; a rubber for conveyor belt covers, formed by using the rubber composition; and a conveyor belt cover provided by using the rubber composition.
RESIN-MODIFIED VEGETABLE OILS IN RUBBER COMPOSITIONS AND TIRES
The present invention is directed to the use of modified vegetable oils in rubber compositions and in tires.
RESIN-MODIFIED VEGETABLE OILS IN RUBBER COMPOSITIONS AND TIRES
The present invention is directed to the use of modified vegetable oils in rubber compositions and in tires.
ADHESIVE FORMULATIONS
An adhesive formulation such as a hot melt adhesive or a pressure sensitive adhesive is provided comprising 5 to 98% (by weight) biodegradable substantially non-crystalline mcl-PHA. The mcl-PHA may be cured with a peroxide curing agent. The adhesive formulation may include an additional biodegradable polymer, or a non-biodegradable thermoplastic elastomer. Hot melt adhesives comprising significant amounts of biodegradable mcl-PHA, waxes, and tackifiers are also provided.
ADHESIVE FORMULATIONS
An adhesive formulation such as a hot melt adhesive or a pressure sensitive adhesive is provided comprising 5 to 98% (by weight) biodegradable substantially non-crystalline mcl-PHA. The mcl-PHA may be cured with a peroxide curing agent. The adhesive formulation may include an additional biodegradable polymer, or a non-biodegradable thermoplastic elastomer. Hot melt adhesives comprising significant amounts of biodegradable mcl-PHA, waxes, and tackifiers are also provided.
THERMOPLASTIC COMPOSITION FOR SEALING ROADWAY JOINTS
Thermoplastic compositions useful for sealing longitudinal joints of substrates, for example, roadways and pavement, are provided herein. Formulations including the composition and methods of using the thermoplastic composition to seal longitudinal joints are also disclosed.