Lanthanide ion exchange properties of a coordination polymer consisting of di(2-ethylhexyl) phosphoric acid and trivalent metal ions (Ce3+, Fe3+, or Al3+)
PROCESS FOR THE PREPARATION OF HIGHLY PURIFIED, DIALKYL PHOSPHINIC ACIDS
申请人:Wo Shiming
公开号:US20060089508A1
公开(公告)日:2006-04-27
In a process for the production of dialkylphosphinic acids, especially branched, dialkylphosphinic acids in high purity via the reaction of an alpha olefin with a hypophosphorous acid or a salt thereof, the improvement comprising conducting the reaction in the presence of a stoichiometric excess of the olefin and isolating and purifying the desired dialkylphosphinic acid product by neutralizing the monoalkylphosphinic acid by-product with an aqueous base; removing the aqueous phase in which the neutralized monoalkylphosphinic acid is preferentially solubilized; acidifying the dialkyl product in the organic phase; and isolating the purified product.
CHROMIUM-BASED CATALYST COMPOSITION FOR PRODUCING CONJUGATED DIENE POLYMERS
申请人:Bridgestone Corp.
公开号:US20020115558A1
公开(公告)日:2002-08-22
A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a chromium-containing compound; (b) an organomagnesium compound; and (c) a silyl phosphonate. also, a process for forming conjugated diene polymers by using the catalyst composition.
METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER/COPOLYMER, MODIFIED CONJUGATED DIENE POLYMER/COPOLYMER, AND RUBBER COMPOSITION AND TIER USING THE SAME
申请人:Tanaka Ken
公开号:US20110146877A1
公开(公告)日:2011-06-23
The invention provides a method for producing a modified conjugated diene (co)polymer, the method including comprising: a modification reaction step including causing an organic silane compound to react with a conjugated diene (co)polymer having an active site at the active site, the organic silane compound having a characteristic group for forming a silanol group through hydrolysis and, in the vicinity of the characteristic group, (i) a functional group which binds the organic silane compound to the conjugated diene (co)polymer via addition to or substitution at the active site and which promotes reaction between the silanol group and a reinforcing filler after the addition or substitution reaction, or (ii) a functional group which promotes reaction between the silanol group and a reinforcing filler, and a hydrolyzation step performed after the modification reaction step; a modified conjugated diene (co)polymer having, at a molecular end of the conjugated diene (co)polymer, a silanol group, and a functional group in the vicinity of the silanol group, the functional group accelerating reaction between the silanol group and the reinforcing filler; a rubber composition containing the (co)polymer and carbon black having specific characteristics; and a tire formed from the rubber composition.
Stain and Color Change Resistant Poly(Phenylene Ether) Composition
申请人:SABIC INNOVATIVE PLASTICS IP B.V.
公开号:US20130253105A1
公开(公告)日:2013-09-26
Disclosed are polymer compositions, comprising:
(a) a poly(phenylene ether);
(b) a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene;
(c) a polybutene;
(d) a flame retardant;
(e) an anti-UV agent wherein the agent comprises a trisaryl-1,3,5-triazine;
(f) a copolymer of ethylene and a C
3
-C
12
alpha-olefin; and
(g) a polyolefin homopolymer;
wherein the polymer composition does not contain a benzotriazole-type UV absorber; all weight percents are based on the total weight of the composition; and wherein an article made from the composition:
(i) is substantially stainless;
(ii) exhibits a CIELAB color shift, (ΔE) of 3 or less after 168 hours of heat exposure at 75° C.; and
(iii) exhibits a CIELAB color shift, (ΔE) of 12 or less after 300 hours of xenon arc exposure according to ASTM D 4459.
Also disclosed are processes for making the compositions as well as articles derived therefrom.
本发明涉及聚合物组合物,包括:(a)聚苯醚;(b)烯丙基芳香化合物和共轭二烯的氢化嵌段共聚物;(c)聚丁烯;(d)阻燃剂;(e)抗紫外线剂,其中该剂包括三芳基-1,3,5-三嗪;(f)乙烯和C3-C12α-烯烃的共聚物;和(g)聚烯烃均聚物;其中聚合物组合物不含苯并三唑类紫外线吸收剂;所有重量百分比均基于组合物的总重量;以及由该组合物制成的物品:(i)基本上不锈;(ii)在75°C的热暴露168小时后,显示CIELAB颜色偏移(ΔE)小于3;和(iii)根据ASTM D 4459,在300小时氙弧曝光后,显示CIELAB颜色偏移(ΔE)小于12。还公开了制备该组合物以及由此得到的物品的工艺。
RUBBER COMPOSITION, RUBBER COMPOSITION FOR TIRE SIDE USE, CROSSLINKED RUBBER COMPOSITION AND TIRE
申请人:Matsushita Junko
公开号:US20130324660A1
公开(公告)日:2013-12-05
The present invention provides a rubber composition that is used for manufacturing a rubber excellent in weather resistance, fracture resistance and crack growth resistance, and that contains a conjugated diene compound/non-conjugated olefin copolymer, a conjugate diene-based polymer and a non-conjugated diene compound/non-conjugated olefin copolymer, a rubber composition for tire side use using the rubber composition for tire sidewall members, a crosslinked rubber composition obtained by crosslinking the rubber composition, and a tire. The rubber composition includes: (A) a conjugated diene compound/non-conjugated olefin copolymer containing a conjugated diene compound-derived unit by at least 40 mol %; (B) a conjugated diene-based polymer; and (C) a non-conjugated diene compound/non-conjugated olefin copolymer containing an ethylene-propylene-diene rubber.