摘要:
The present invention provides a tire puncture sealant which has a reduced viscosity at low temperatures and better injectability at low temperatures while exerting excellent initial sealing performance and storage stability. The present invention also provides a tire puncture sealant which further has better injectability at high temperatures while exerting the seal retention performance. The present invention relates to a tire puncture sealant including: a natural rubber latex; a tackifier; and propylene glycol, wherein the amount of the propylene glycol in 100% by mass of a liquid portion of the puncture sealant is 55% by mass or more, and also relates to a tire puncture sealant including: a natural rubber latex; a tackifier; propylene glycol; and a nonionic surfactant, wherein the nonionic surfactant is a polyoxyalkylene alkyl ether and/or a polyoxyalkylene alkenyl ether.
摘要:
The present invention provides a tire puncture sealant including a rubber latex and 1,3-propanediol, which has a reduced viscosity at low temperatures, has better injectability at low temperatures, and is also excellent in storage stability, initial sealing performance, and seal retention performance.
摘要:
The present invention provides a tire puncture sealant which has a reduced viscosity at low temperatures and better injectability at low temperatures while exerting excellent initial sealing performance and storage stability. The present invention also provides a tire puncture sealant which further has better injectability at high temperatures while exerting the seal retention performance. The present invention relates to a tire puncture sealant including: a natural rubber latex; a tackifier; and propylene glycol, wherein the amount of the propylene glycol in 100% by mass of a liquid portion of the puncture sealant is 55% by mass or more, and also relates to a tire puncture sealant including: a natural rubber latex; a tackifier; propylene glycol; and a nonionic surfactant, wherein the nonionic surfactant is a polyoxyalkylene alkyl ether and/or a polyoxyalkylene alkenyl ether.
摘要:
The present invention provides a tire puncture sealant which has a reduced viscosity at low temperatures and better injectability at low temperatures while exerting excellent initial sealing performance and storage stability. The present invention also provides a tire puncture sealant which further has better injectability at high temperatures while exerting the seal retention performance. The present invention relates to a tire puncture sealant including: a natural rubber latex; a tackifier; and propylene glycol, wherein the amount of the propylene glycol in 100% by mass of a liquid portion of the puncture sealant is 55% by mass or more, and also relates to a tire puncture sealant including: a natural rubber latex; a tackifier; propylene glycol; and a nonionic surfactant, wherein the nonionic surfactant is a polyoxyalkylene alkyl ether and/or a polyoxyalkylene alkenyl ether.
摘要:
The present invention provides a tire puncture sealant which has a reduced viscosity at low temperatures and better injectability at low temperatures while exerting excellent initial sealing performance and storage stability. The present invention also provides a tire puncture sealant which further has better injectability at high temperatures while exerting the seal retention performance. The present invention relates to a tire puncture sealant including: a natural rubber latex; a tackifier; and propylene glycol, wherein the amount of the propylene glycol in 100% by mass of a liquid portion of the puncture sealant is 55% by mass or more, and also relates to a tire puncture sealant including: a natural rubber latex; a tackifier; propylene glycol; and a nonionic surfactant, wherein the nonionic surfactant is a polyoxyalkylene alkyl ether and/or a polyoxyalkylene alkenyl ether.
摘要:
The invention relates to an isoprene oligomer that contains a trans structural moiety and a cis structural moiety, which can be represented by the following formula (1), wherein at least 1 atom or group in the trans structural moiety is replaced by another atom or group. The invention also relates to a polyisoprene, which is biosynthesized using the isoprene oligomer and isopentenyl diphosphate. Further, this invention provides a rubber composition comprising the isoprene oligomer and/or the polyisoprene, and a pneumatic tire, including tire components (e.g., treads and sidewalls) formed from the rubber composition. wherein n represents an integer from 1 to 10; m represents an integer from 1 to 30; and Y represents a hydroxy group, a formyl group, a carboxy group, an ester group, a carbonyl group, or a group represented by the following formula (2):
摘要:
A rubber composition for a tire, in which a specific tackifier is compounded, and tackiness and various physical properties are improved, compared with compounding a petroleum resin or a terpene resin, is provided. The rubber composition for a tire comprising an alkyd resin and a pneumatic tire using the same. It is preferable that a material derived from a resource other than petroleum, particularly, a material derived from animal and/or vegetable, and more particularly, a material derived from an animal oil and/or a vegetable oil is contained in the alkyd resin, and it is preferable that unsaturated polybasic acid is contained in the alkyd resin.
摘要:
The present invention provides a rubber composition for a breaker, which achieves both good fuel economy and good breaking performance while simultaneously having excellent processability, and a pneumatic tire including a breaker produced using the rubber composition. The present invention relates to a rubber composition for a breaker, including: a rubber component that contains a modified natural rubber, the rubber having a phosphorus content of 200 ppm or less; and carbon black and/or a white filler, wherein the rubber composition contains 5% by mass or more of the modified natural rubber based on 100% by mass of the rubber component.
摘要:
Disclosed is a cationic graft-modified natural rubber latex, which is obtained by cationically modifying the graft-natural natural rubber latex with a cationic surfactant in the presence of a nonionic surfactant such as polyoxyalkylene alkyl phenyl ether, polyoxyalkylene monostyryl phenyl ether, polyoxyalkylene distyryl phenyl ether or polyoxyalkylene tristyryl phenyl ether, the obtained rubber latex being useful as an adhesive for fibers and papers.
摘要:
A deproteinized natural rubber substantially free from any protein and a process for producing the same which comprises treating a latex with a protease and a specific surfactant or a combination of specific surfactants and separating rubber particles are disclosed. A method for elevating the green strength of a natural rubber and a method for lowering the green strength of a natural rubber are also disclosed. Furthermore, a means for preventing allergy induced by natural rubber is also disclosed.