Abstract:
This invention relates to a process for the preparation of a silane-functionalized resin composition comprising the steps of mixing a polymer backbone, a silane, and a free radical initiator; and producing a silane-functionalized resin composition. The polymer backbone is selected from at least one of dicyclopentadiene (DCPD)-based polymers, cyclopentadiene (CPD)-based polymers, DCPD-styrene copolymers, C 5 homopolymers and copolymer resins, C 5 -styrene copolymer resins, terpene homopolymer or copolymer resins, pinene homopolymer or copolymer resins, C 9 homopolymers and copolymer resins, C 5 /C 9 copolymer resins, alpha-methylstyrene homopolymer or copolymer resins, and combinations thereof.
Abstract:
An underwater pelletizing method for pelletizing brittle hydrocarbon resins with low melt viscosity. A feed material comprising the hydrocarbon resin is formed into a melt, extruded through a die into a water bath below the Tg of the hydrocarbon resin to form a plurality of extrudates and cut adjacent the die surface to form a slurry of resin pellets. A graft monomer and/or other reactants, such as a hydrosilylation agent, may be introduced into the resin melt to chemically modify the hydrocarbon resin.
Abstract:
Le domaine de l'invention est l'utilisation d'une quantité efficace d'un système polyfonctionnel (A) de couplage comme agent de couplage charge inorganique - élastomère dans les compositions de caoutchouc comprenant : (B) au moins un élastomère de type caoutchouc, naturel ou synthétique ; (C) une charge inorganique à titre de charge renforçante ; (D) tout ou partie des autres constituants ou additifs habituellement utilisés comprenant notamment un (ou des) agent(s) de vulcanisation ; ladite utilisation étant caractérisée en ce que : + le système polyfonctionnel de couplage (A) consiste dans la combinaison des ingrédients (A1) et (A2) suivants : (A1) est au moins un agent de couplage choisi parmi les composés organosiliciques fonctionnalisés de formule (I) suivante : [(G 0 ) 3 SiO 1/2 ] m [(G 0 ) 2 SiO 2/2 ] n [G 0 SiO 3/2 ] o [Si O 4/2 ] p [(G 2 )a(G 1 ) a' (Z-CO-N=N-CO-A )SiO (3-a-a')/2 ] q dans laquelle les symboles Z, A, G 0 , G 1 , G 2 , a, a', m, n, o, p et q possèdent les définitions indiquées dans la revendication 1 ; (A2) est au moins un agent de couplage choisi parmi soit les silanes polysulfurés "symétriques", soit les silanes sulfurés "dissymétriques" ; + ledit système polyfonctionnel de couplage (A) est incorporé dans des compositions de caoutchouc à base d'élastomères isopréniques.
Abstract:
A polymerizable ethylenically unsaturated oligomer which is a reaction product of: (1) a polybutadiene oligomer carrying two reactive groups and lacking significant unsaturation, the oligomer containing at least about 60 % by weight of butadiene polymerized inthe 1,2 position with the balance of the butadiene polymerized in the 1,4 position, said difunctional oligomer having a number average molecular weight of from about 500 to about 5,000 daltons and (2) a monofunctional ethylenically unsaturated compound, the unsaturated oligomer having a number average molecular weight of from about 1,000 to about 10,000 and containing at least about 40 % by weight of the polybutadiene oligomer. These unsaturated oligomers are combined with an ethylenically unsaturated liquid comprising alkyl (meth)acrylate to form cured coatings having superior resistance to water.
Abstract:
본 출원은, 경화성 조성물, 경화체 및 경화성 조성물과 경화체의 용도에 관한 것이다. 예시적인 경화성 조성물은 저 유전율을 나타내면서 접착 특성이 우수한 경화체를 제조할 수 있으므로 디스플레이 장치의 다양한 광학 기능 부재의 접합, 예를 들면, 터치 패널과 표시 패널의 접합(Direct Bonding)에 유용하게 사용될 수 있다.
Abstract:
The invention concerns the use of an efficient amount of a polyfunctional coupling system (A) as inorganic-elastomer filler coupling agent in rubber compositions including: (B) at least one elastomer such as natural or synthetic rubber; (C) an inorganic filler as reinforcing filler; (D) all or part of the constituents or additives normally used including in particular one (or more) vulcanizing agent(s). Said use is characterized in that: the polyfunctional coupling system consists in combining the following ingredients (A1) and (A2): (A1) is at least one coupling agent selected among the functionalized organosilicium compounds of following formula (I): [(G 0 ) 3 SiO 1/2 ] m [(G 0 ) 2 SiO 2/2 ] n [G 0 SiO 3/2 ] o [Si O 4/2
Abstract:
Epoxy-modified, two-part acrylic structural adhesives characterized by improved T-peel strength are disclosed. These adhesives are not inhibited by oxygen. Representative embodiments include 2-part acrylic structural adhesives comprising,in a first package from about 10 to about 90 percent by weight of at least one methacrylate selected from C 3 - C 10 alkyl monosubstituted-, C 1 -C 6 alkyl disubstituted-, C 1 -C 4 alkyl trisubstituted, and C l -C 4 alkyl tetra-substituted cyclohexyl methacrylate. The ring substituents are prefereably in the 3, 4, and/or 5 ring position, and linear or branched C 4 -C 10 branched alkyl methacrylates; from about 10 to about 80 percent by weight of a toughener, and an adhesion promotor; and in a second package, a bonding activator, and optional epoxy resin.
Abstract:
A nano-particle composition including a poly (alkenylbenzene) core and a poly (conjugated diene) or a poly(alkylene) surface layer is provided. The nano-particles have a mean average diameter less than about 100nm. The nano-particles can be modified via, for example, hydrogenation or functionalization. The nano-particles can advantageously be incorporated into rubbers, elastomers, and thermoplastics.
Abstract:
Described is a compliant and crosslinkable thermal interface material of at least one silicone resin mixture, at least one wetting enhancer and at least one thermally conductive filler, and a method of making and using same; as well as a method of improving thermal conductivity of polymer and resin systems.