Patent classifications
C08L19/006
Polymers functionalized with imine compounds containing a cyano group
A method for preparing a functionalized polymer, the method comprising the steps of (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an imine compound containing a cyano group.
Modified conjugated diene-based polymer, production method thereof, rubber composition and tire
A modified conjugated diene-based polymer having a nitrogen atom, wherein a content of the nitrogen atom is 25 mass ppm or more based on a total amount of the modified conjugated diene-based polymer, a shrinking factor (g′) is 0.59 or less in a GPC-light scattering measurement method with a viscosity detector, and a weight average molecular weight is 200,000 or more and 3,000,000 or less.
Modified conjugated diene-based polymer, production method thereof, rubber composition and tire
A modified conjugated diene-based polymer having a nitrogen atom, wherein a content of the nitrogen atom is 25 mass ppm or more based on a total amount of the modified conjugated diene-based polymer, a shrinking factor (g′) is 0.59 or less in a GPC-light scattering measurement method with a viscosity detector, and a weight average molecular weight is 200,000 or more and 3,000,000 or less.
RESIN COMPOSITION AND DISPLAY UNIT
A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer can have a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×10.sup.7 Pa or less. The cured resin layer can be formed from a resin composition that has a cure shrinkage of 5% or less.
END GROUP FUNCTIONALIZATION AGENTS FOR POLYDIENE
The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV):
##STR00001##
wherein A,
##STR00002##
R.sup.1, R.sup.2, R.sup.3, a, and n are as described herein and
##STR00003##
wherein
##STR00004##
R, R′, R″, x, and k are as described herein and methods for preparation thereof. The present invention also relates to a compound having the structure of Formula (II):
##STR00005##
wherein A, R.sup.1, R.sup.2, R.sup.3, a, and n are as described herein. The present invention also relates to a process for polymerizing unsaturated hydrocarbon monomers.
Resin composition and display unit
A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer has a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×10.sup.7 Pa or less. The cured resin layer is formed from a resin composition that has a cure shrinkage of 5% or less.
Resin composition and display unit
A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer has a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×10.sup.7 Pa or less. The cured resin layer is formed from a resin composition that has a cure shrinkage of 5% or less.
RUBBER COMPOSITION FOR BLADDER
A rubber composition for bladder contains a rubber component containing butyl rubber, a fluorine-based polymer, and a citraconimide compound. When a total amount of the rubber component containing butyl rubber is taken as 100 parts by mass, the fluorine-based polymer is contained in an amount of 0.1 to 2 parts by mass and the citraconimide compound is contained in an amount of 0.2 to 2 parts by mass. It is preferable that the rubber composition for bladder further contains 1 to 10 parts by mass of a sorbitan fatty acid ester. It is preferable that the rubber composition for bladder further contains 1 to 10 parts by mass of a vegetable oil.
TIRE COMPONENT FROM RUBBER WITH LOWER SURFACE AREA SILICA
A tire comprising a tire component formed from a cross-linkable rubber composition having a rubber component selected from the group consisting of natural rubber, a synthetic rubber and combinations thereof with between 50 phr and 80 phr of a silica reinforcement filler having a BET surface area of between 100 m.sup.2/g and 135 m.sup.2/g measured in accordance with ASTM D1993. The cross-linkable rubber composition further includes a silica coupling agent and a sulfur curing system comprising between 1 phr and 2 phr of sulfur and an accelerator in an amount to provide a ratio of the sulfur to the accelerator by weight of between 0.4 and 0.6.
RECYCLING OF VULCANIZED RUBBER PRODUCTS
The invention relates to a process for recycling used rubber product, such as tires and/or other rubber products, containing the step of treating the rubber grind obtained by grinding the used rubber products, in the presence of a weak base and butadiene/styrene copolymer as well one or more additives to a shear stress of at least 15 to 25 MPa. The invention relates furthermore to re-vulcanizable re-rubber blend obtained by the process according to the invention and also to the tires and other rubber products obtained by vulcanizing thereof.