Provided is a resin composition, comprising: an isobutylene-based copolymer (A) containing a halogen atom; an ethylene-vinyl alcohol copolymer (B); and a halogen scavenger (C), wherein a mass ratio (B/A) of the ethylene-vinyl alcohol copolymer (B) to the isobutylene-based copolymer (A) containing a halogen atom is from 20/80 to 50/50, and a content of the halogen scavenger (C) is from 0.01 to 1 part by mass based on 100 parts by mass of a total of the isobutylene-based copolymer (A) containing a halogen atom and the ethylene-vinyl alcohol copolymer (B). Such a resin composition is excellent in gas barrier properties and flexibility and stably produced over a long period of time.

A photoreactive additive manufacturing system comprises a resin tub, a membrane, and a resin pool confined by the resin tub and the membrane. In some embodiments, the membrane comprises a polymeric blend comprising a first polymer and a second polymer, and the first polymer is a fluoropolymer. In some embodiments, the membrane comprises a polymer and an additive to control the free volume of the polymer.

A photoreactive additive manufacturing system comprises a resin tub, a membrane, and a resin pool confined by the resin tub and the membrane. In some embodiments, the membrane comprises a polymeric blend comprising a first polymer and a second polymer, and the first polymer is a fluoropolymer. In some embodiments, the membrane comprises a polymer and an additive to control the free volume of the polymer.

The claimed material relates to a composite of an interfacial modified fiber and mixed or combined polymer composite having enhanced impact, and modulus properties.

A polyisoolefin-based polymer composition having a multimodal molecular weight distribution is described, which can be prepared by the late addition of a chain transfer agent to the polymerization process. The polymer composition has a low molecular weight fraction having a peak molecular weight (M.sub.p) of less than about 100,000 g/mol and a high molecular weight fraction having a peak molecular weight (M.sub.p) of greater than about 250,000 g/mol, the low molecular weight fraction present in the composition in an amount less than the high molecular weight fraction. Cured articles produced from the polyisoolefin-based polymer composition exhibit improved processability while maintaining physical properties.

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.

A compound for a tyre sealant layer comprising at least one polymer base consisting of an essentially saturated polymer and a filler, which in turn comprises kraft lignin.

A compound for a tyre sealant layer comprising at least one polymer base consisting of an essentially saturated polymer and a filler, which in turn comprises kraft lignin.

A compound for a tyre sealant layer comprising at least one polymer base consisting of an essentially saturated polymer and a filler, which in turn comprises kraft lignin.