Abstract: A curable precursor composition for a fluoroelastomers, methods of making fluoroelastomers, shaped articles and methods of making shaped articles.

Abstract: Described herein is a mixture comprising: (a) a non-self-crosslinking polymer; and (b) a modifying compound comprising: (i) a first functional group capable of reacting with the reaction sites of the non-self-crosslinking polymer; and (ii) a second functional group capable of crosslinking with a curing agent, wherein the first functional group is different than the second functional group. Also, described are curable polymeric compositions, and methods of making cured polymeric compositions.

Abstract: A curable precursor composition for a fluoroelastomers, methods of making fluoroelastomers, shaped articles and methods of making shaped articles.

Abstract: Described herein is a composition comprising at least one of: X—R—(Z)n wherein X is selected from: an aziridine amide, an aziridine urea, an isocyanate, an alcohol, an amine, an epoxy, or a sulfhydryl, R is a multifunctional organic group, and Z is selected from —N3 or —C?C—R?, wherein R? is a hydrogen or a monofunctional organic group and n is from one to about 10. Also, described are mixtures, curable polymeric compositions, and methods of making cured polymeric compositions.

Abstract: Described herein is a mixture comprising: a non-self-crosslinking polymer; and a modifying compound comprising at least two different functional groups. The first functional group of the modifying compound is capable of reacting with the non-self-crosslinking polymer and the second functional group is capable of crosslinking with a curing agent. Also, described are compositions, curable polymeric compositions, articles using such curable polymeric compositions, and methods of making cured polymeric compositions.

Abstract: Described herein are substantially linear copolymeric compositions having at least two azide groups and at least two non-activated acetylene groups. The azide groups and the non-activated acetylene groups are reacted to cure the substantially linear copolymer composition. Also, described are methods of making and using such substantially linear copolymeric compositions.

Abstract: Described herein are substantially linear copolymeric compositions having at least two azide groups and at least two non-activated acetylene groups. The azide groups and the non-activated acetylene groups are reacted to cure the substantially linear copolymer composition. Also, described are methods of making and using such substantially linear copolymeric compositions.

Abstract: Compositions having a fluoropolymer with a nitrile-containing cure site and at least a) a mono azide with at least one functional group in the beta position, or b) a polyazide, as a curing agent as well as methods and articles thereof are described. Articles of this disclosure are found to exhibit excellent chemical resistance and thermal stability.

Abstract: Azide compositions selected from i) UOCR2CR2N3 wherein U is D, or a urethane (—CO—NR2) and R is independently H, D, or an organic group; ii) R?2NCR2CR2N3 or A-R?3NCR2CR2N3 wherein R? is an organic group and A is an anion; or iii) G(N3)m wherein m is an integer from 2 to about 10 and G is a m-valent organic group wherein at least two of the azido groups are connected via aliphatic carbon atoms wherein G may contain organic groups, and uses thereof are described. Specifically, the azide compositions selected from the group consisting of: N3CH2CH2OCH2CHOHCH2N3, CH3OCH2CHOHCH2N3, CH3OCH2CH(OCONHC4H9)CH2N3, N3CH2CH2O[CH2CH(CH2N3)O]6H, CH3CH2C[CH2(OCH2CH(CH2N3))2OCOCH3]3N3CH2CH2OCONH(CH2)6NHCOOCH2CH2N3, (CH3)3CNHCOOCH2CH2N3, n-C4H9NDCOOCH2CH2N3, C6H5N—HCOOCH2CH2N3, C4F9OCFCF3NDCOOCH2CH2N3, DOCH2CH2N3, and [(CH3)3NCH2CH2N3]+I are described.

Abstract: Compositions having a fluoropolymer with a nitrile-containing cure site and at least a) a mono azide with at least one functional group in the beta position, or b) a polyazide, as a curing agent as well as methods and articles thereof are described. Articles of this disclosure are found to exhibit excellent chemical resistance and thermal stability.

Abstract: Described herein is a mixture comprising: a non-self-crosslinking polymer; and a modifying compound comprising at least two different functional groups. The first functional group of the modifying compound is capable of reacting with the non-self-crosslinking polymer and the second functional group is capable of crosslinking with a curing agent. Also, described are compositions, curable polymeric compositions, articles using such curable polymeric compositions, and methods of making cured polymeric compositions.

Abstract: Described herein are substantially linear copolymeric compositions having at least two azide groups and at least two non-activated acetylene groups. The azide groups and the non-activated acetylene groups are reacted to cure the substantially linear copolymer composition. Also, described are methods of making and using such substantially linear copolymeric compositions.

Abstract: A composition is described comprising an organic polymer or a polymerizable monomer, having dispersed therein an azido polymer surface-modified particle phase, in an amount sufficient to reduce the flammability of the polymer.

Abstract: Briefly, in one aspect, the present invention provides compositions of open-chain, .alpha.-branched fluoroalkylcarbonyl fluorides, and derivatives thereof.

Abstract: This invention provides a method of preparing fluoropolymer utilizing one or more environmentally-friendly fluorinated emulsifiers comprising .alpha.-branched fluoroalkylcarbonyl moieties. Fluoropolymer emulsions comprising one or more environmentally-friendly fluorinated emulsifiers comprising .alpha.-branched fluoroalkylcarbonyl moieties are also disclosed.

Abstract: A polymer material formed from the reaction between ingredients comprising an azido polymer containing at least about 5 weight percent azido groups; and at least one multifunctional dipolarophile having reactive groups selected from an acrylic and an acetylenic ester or amide, the resulting polymer material comprising triazoline and/or triazole groups. Also, a method of improving the burn rate of an azido polymer including the steps of reacting an azido polymer with the above-described multifunctional dipolarophile.

Abstract: A normally liquid, non-detonable product having less than about 45.7 weight percent nitrogen comprising polymer which can be represented by the general formula:R(G).sub.n R.sup.1where, in the above formula,n is a number between 2 and 18;G is an azidomethyloxyethylene moiety;R is a monovalent residue of an organic initiator compound or a monovalent alkyl radical, R is essentially free of isocyanate-reactive moieties and may be substituted with non-interfering atoms or moleties and it cannot be substituted with energetic nitrogen-containing moieties other than azido moleties;R.sup.1 is a monovalent alkoxy radical, oxyaryl radical or combinations thereof, or R.sup.1 is an azido moiety, R.sup.1 is essentially free of isocyanate-reactive atoms or moieties and it may be substituted with non-interferring atoms or moieties and it cannot be substituted with energetic nitrogen-containing moleties other than azido moieties; orR and R.sup.1, taken together, are a carbon-oxygen bond when said polymer is a cyclic compound.

Abstract: Various catalyst precursors are used for the thermal decomposition of azide-containing polymers and oligomers. The catalyst precursors are organometallic complexes which upon thermolysis are capable of liberating at least one coordination site, thereby generating a catalyst for the thermal decomposition of the azide-containing polymer or oligomer.

Abstract: Epichlorohydrin is polymerized with an active hydrogen-containing initiator and the resulting secondary hydroxyl-containing polyepichlorohydrin is further reacted to produce a hydroxyl-terminated polyepichlorohydrin product having chains terminating in a primary hydroxyl group, said polyepichlorohydrin product being reactable with an inorganic azide to produce a poly(glycidyl azide) product useful as a binder for solid rocket propellants.

Abstract: A prepolymer for use in preparing a binder for low vulnerability gun propellants. The condensation of an alkynediol and formaldehyde produces a prepolymer which is cured with a polyisocyanate. The resulting binder can be combined with 1,3,5,7-tetramethylenetetranitramine (HMX) or 1,3,5-trimethylenetrinitramine (RDX), and is readily extruded as multi-perforated propellant grains, the extruded material having a greatly reduced tendency to slumping, and an enhanced mass impetus value.