The present invention is directed to a wax with graphene compositions offering surprising benefits in reducing bicycle or motorbike chain lengthening, particularly in off road environments with high dirt and water levels such as during mountain biking or off-road biking. The invention is further directed to a method of preparing such compositions and to the use of such compositions on bicycle or motorbike chains.

The present invention is directed to compositions with solvent, wax and graphene. These compositions offer surprising benefits in reducing bicycle or motorbike chain lengthening, particularly in off road environments with high dirt and water levels such as during mountain biking or off-road biking. The invention is further directed to a method of preparing such compositions and to the use of such compositions on bicycle or motorbike chains.

In one or more embodiments, the present invention provides an way to modify the isoprene unit using an alder-ene reaction to form thermoset compounds comprising the resultant electron-deficient, readily crosslinkable polyisobutylene-based rubber that avoids the use of corrosive bromine or chlorine to make the activated butyl rubber, is easier to crosslink than the halobutyls, allows crosslinking with a simple organic base or a peroxide, and has mechanical properties as good as or better than sulfur crosslinked butyl rubbers.

In one or more embodiments, the present invention provides an way to modify the isoprene unit using an alder-ene reaction to form thermoset compounds comprising the resultant electron-deficient, readily crosslinkable polyisobutylene-based rubber that avoids the use of corrosive bromine or chlorine to make the activated butyl rubber, is easier to crosslink than the halobutyls, allows crosslinking with a simple organic base or a peroxide, and has mechanical properties as good as or better than sulfur crosslinked butyl rubbers.

Butyl based composition having hydrocarbon resins are provided herein. The hydrocarbon resin has a Tg from 10 C. to 25 C., a number average molecular weight between 20 to 500, a weight average molecular weight between about 100 to about 2000, and a glass transition temperature between about 0 C. to about 80 C.

A rubber composition containing based upon parts by weight per 100 parts by weight rubber (phr): (A) 20-50 phr of a copolymer of ethylene, at least one C3 to C23 -olefin and a least one polyene monomer, whereby the copolymer unit derived from the polyene is 1 to 5 wt. %, by weight of the copolymer (A) and has a Mooney viscosity ML (1+4) at 100 C. from 51 or greater, in particular from 55 to 90 at 100 C., (B) 50-80 phr of butyl-type rubber and (C) a resin-based curative, containing a phenol formaldehyde resin cross-linker as only curing agent and an activator package comprising of metal oxide and a halogen donor where a halogenated component (B) or halogenated cross-linker as part of component (C) not already present.

A rubber composition containing based upon parts by weight per 100 parts by weight rubber (phr): (A) 20-50 phr of a copolymer of ethylene, at least one C3 to C23 -olefin and a least one polyene monomer, whereby the copolymer unit derived from the polyene is 1 to 5 wt. %, by weight of the copolymer (A) and has a Mooney viscosity ML (1+4) at 100 C. from 51 or greater, in particular from 55 to 90 at 100 C., (B) 50-80 phr of butyl-type rubber and (C) a resin-based curative, containing a phenol formaldehyde resin cross-linker as only curing agent and an activator package comprising of metal oxide and a halogen donor where a halogenated component (B) or halogenated cross-linker as part of component (C) not already present.

A rubber composition containing based upon parts by weight per 100 parts by weight rubber (phr): (A) 20-50 phr of a copolymer of ethylene, at least one C3 to C23 -olefin and a least one polyene monomer, whereby the copolymer unit derived from the polyene is 1 to 5 wt. %, by weight of the copolymer (A) and has a Mooney viscosity ML (1+4) at 100 C. from 51 or greater, in particular from 55 to 90 at 100 C., (B) 50-80 phr of butyl-type rubber and (C) a resin-based curative, containing a phenol formaldehyde resin cross-linker as only curing agent and an activator package comprising of metal oxide and a halogen donor where a halogenated component (B) or halogenated cross-linker as part of component (C) not already present.

Described herein are solid and foamable fluoropolymer alloy compositions and foamed articles using said foamable fluoropolymer alloy compositions. The foamable fluoropolymer alloy compositions can comprise a fluoropolymer, and a plastic polymer mixed with said fluoropolymer, wherein said plastic polymer is miscible with said fluoropolymer. The fluoropolymer alloy composition may further comprise a foaming agent. By way of example, the foaming agent can be talc or a talc derivative, or a mixture of talc (or talc derivative) with a citrate compound, such as a citrate salt. One or more additives are added to render the compositions flame retardant and/or smoke suppressant.

Described herein are solid and foamable fluoropolymer alloy compositions and foamed articles using said foamable fluoropolymer alloy compositions. The foamable fluoropolymer alloy compositions can comprise a fluoropolymer, and a plastic polymer mixed with said fluoropolymer, wherein said plastic polymer is miscible with said fluoropolymer. The fluoropolymer alloy composition may further comprise a foaming agent. By way of example, the foaming agent can be talc or a talc derivative, or a mixture of talc (or talc derivative) with a citrate compound, such as a citrate salt. One or more additives are added to render the compositions flame retardant and/or smoke suppressant.