Elastomeric ethylene/acrylic or vinyl ester/glycidyl-(meth)acrylate copolymers, optionally containing carbon monoxide moieties, are cured with piperazinium diphenoxide salts, e.g. piperazinium di-(2-chloro-4-nitrophenoxide).
FUNCTIONALISED NITRILE RUBBERS AND THE PRODUCTION THEREOF
申请人:Obrecht Werner
公开号:US20170190806A1
公开(公告)日:2017-07-06
Provided are new functionalized nitrile rubbers, which may optionally also be in partially or wholly hydrogenated form, and also a process for preparing them by metathesis of nitrile rubbers in the presence of a metathesis catalyst and at least one functionalized allyl compound. The new functionalized nitrile rubbers are suitable for producing vulcanizable mixtures and allow the production of vulcanizates having very stable networks. Also made possible, in particular, is the synthesis of block copolymers.
A photocurable ink composition includes polymerizable compounds and a photopolymerization initiator. The polymerizable compounds include vinyl ether group-containing (meth)acrylic esters represented by the following Formula (I):
CH
2
═CR
1
—COOR
2
—O—CH═CH—R
3
(I)
(wherein, R
1
represents a hydrogen atom or a methyl group; R
2
represents a divalent organic residue having 2 to 20 carbon atoms; and R
3
represents a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms), dipropylene glycol di(meth)acrylate, and monofunctional (meth)acrylate having an aromatic ring skeleton. The ink composition includes a coloring material.
[EN] VACUUM PRE-CASTING OF POLYAMIDE POLYMERS<br/>[FR] PRÉMOULAGE SOUS VIDE DE POLYMÈRES DE POLYAMIDE
申请人:INVISTA TECHNOLOGIES SRL
公开号:WO2014179056A1
公开(公告)日:2014-11-06
The present disclosure provides methods and apparatuses providing uniform polyamide pellets. In one example, a method can include maintaining a vacuum during a pre-casting polymerization cycle of the cyclic process such that the pre-casting polymerization cycle produces a reactive polyamide polymer with decreased pre-casting polymerization cycle time, extruding the reactive polyamide polymer during a casting cycle by adjusting process parameters including vessel pressure and extrusion valve opening to generate a throughput of extruded polymer, and cutting the extruded polymer at a cutting speed substantially proportional to the throughput to provide polyamide pellets.