摘要:
Die Erfindung betrifft Silanmischungen, enthaltend ein Silan der Formel I
(R 1 )) y (R 2 ) 3-y Si-R 3 -(S-R 4 ) n -S-R 5 (I),
und ein Silan der Formel II
(R 1 )) y (R 2 ) 3-y Si-R 3 -(S-R 4 ) z -S-R 3 -Si(R 1 ) y (R 2 ) 3-y (II),
wobei das Molverhältnis von Silan der Formel I zu Silan der Formel II 20:80 - 90:10 beträgt. Die erfindungsgemäße Silanmischung kann hergestellt werden durch Mischen der Silane der Formel I und Silane der Formel II.
摘要:
A water-based cement for producing tyres includes 5 to 80% by weight of water, 10 to 60% by weight of a cross-linkable unsaturated-chain polymer base, 1 to 15% by weight of emulsifiers, and a quantity of metal oxide depending on the desired degree of adhesion.
摘要:
A latex formulation for making elastomeric product, more particularly an elastomeric glove comprising a mixture of at least one base polymer, a cross-linker; and a pH adjustor, where the pH adjustor providing a pH range of 9.5 to 10.5. Still further, the present invention discloses a method for preparing a latex formulation for making elastomeric product, more particularly an elastomeric glove without using accelerators, zinc oxide and sulphur, which comprises the steps of mixing a base polymer with a pH adjuster, stirring the mixture for time period ranging from 20 minutes to 30 minutes, adding a cross-linker to the mixture, stirring said mixture for an hour, optionally adding at least one or more additive to said mixture, adding water to said mixture to achieve a total solid content (TSC) ranging in between 13% to 30% by w/w, allowing said mixture to mature.
摘要:
The present application relates to a modified rubber masterbatch and preparation method thereof, rubber composition prepared therewith and vulcanized rubber and preparation method thereof. The modified rubber component comprises uncrosslinked rubber and rubber particles having crosslinked structure dispersed therein, wherein the rubber particles having crosslinked structure are synthetic rubber particles and/or natural rubber particles, have an average particle size of 20-500 nm and a gel content of 60% by weight or higher, and wherein the uncrosslinked rubber is styrene-butadiene rubber. The weight ratio of the rubber particles having crosslinked structure to the uncrosslinked rubber is greater than 20:80 and less than or equal to 80:20. The rubber composition comprises a blend of modified rubber component and base rubber, in which the modified rubber masterbatch is present in an amount of 1 to 70 parts by weight, relative to per 100 parts by weight of the base rubber. The vulcanized rubber of the rubber composition has not only low rolling resistance and excellent wet skid resistance, but also excellent wear resistance, and thus can be used for producing high performance tread rubber.
摘要:
A method of producing rubber mixes, including a step of mixing a reinforcing filler, having a surface area of over 220 m2/g and a particle size of less than 0.1 mum, with a cross-linkable, unsaturated-chain polymer base. The mixing step is performed in the aqueous phase, in the presence of a surface-active agent of molecular formula (I) (R1CONR2CHR3COO-)nXn+ (I) where: R1 is an aliphatic group C4-C20 R2 is H or an aliphatic group C1-C8 R3 is H or an aliphatic or aromatic group C1-C8 X is a metal cation n is an integer of 1 to 3.
摘要:
Disclosed are a rubber composition for tire treads including a fusion resin that is formed by chemically binding two or more resins with different softening points and a tire manufactured using the same. More particularly, a rubber composition for tire treads to maintain grip and durability during high-speed driving, and a tire manufactured using the same are disclosed.
摘要:
Sealing composition for repairing tyres comprising: 15 to 80% of natural latex, 5 to 50% of synthetic latex, 10 to 60% of a glycol selected from ethylene glycol and propylene glycol and 0.05 to 5% of a mineral chosen from a phyllosilicate and silica having an average granulometric distribution in the range between 5 and 95 nm.