Catalyst Systems for the Catalytic Oligomerization of Olefinic Monomers
申请人:DE BOER Eric Johannes Maria
公开号:US20110288356A1
公开(公告)日:2011-11-24
The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand comprising the product formed by reacting
i) a compound having the general formula (III);
(R
1
)(R
2
)P—N(R
3
)—R
5
(III); and
ii) a compound of the formula X—P(R
4
), preferably at a temperature in the range of from −30 to 200° C.
CATALYST SYSTEMS FOR THE CATALYTIC OLIGOMERIZATION OF OLEFINIC MONOMERS
申请人:Shell Oil Company
公开号:US20140107304A1
公开(公告)日:2014-04-17
The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV);
(R
8
)(R
1
)P—N(R
3
)—P(R
4
) (IV).
LIGANDS AND CATALYST SYSTEMS THEREOF FOR THE CATALYTIC OLIGOMERIZATION OF OLEFINIC MONOMERS
申请人:DE BOER Eric Johannes Maria
公开号:US20100311928A1
公开(公告)日:2010-12-09
The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand comprising the product formed by reacting
i) a compound having the general formula (III);
(R
1
)(R
2
)P—N(R
3
)—R
5
(III); and
ii) a compound of the formula X—P(R
4
), preferably at a temperature in the range of from −30 to 200° C.
A process for preparing vinyl ester resins containing triazine or both triazine and oxazoline groups
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0156959A1
公开(公告)日:1985-10-09
This invention pertains to a process for preparing vinyl ester resins containing triazine groups or both triazine and oxazoline groups prepared by reacting a polyepoxide with 0.75 to 1, preferably from 0.9 to 1, moles of a monounsaturated monocarboxylic acid or mixture of monounsaturated monocarboxylic acids per epoxide group in the presence of a suitable quantity of a suitable catalyst. The process is characterized in that the polyepoxide is (a) a polyepoxide containing triazine groups, or (b) a polyepoxide containing both triazine and oxazoline groups, or (c) a mixture of (a) and (b).
Photothermographic elements comprising hydroxamic acid developers
申请人:Imation Corp.
公开号:EP0764878A1
公开(公告)日:1997-03-26
A photothermographic element capable of providing an image density that exceeds background fog by at least 1.2 optical density units comprising a support bearing at least one photothermographic medium comprising:
(a) a photosensitive silver halide;
(b) a non-photosensitive, reducible silver source;
(c) a reducing agent for the non-photosensitive, reducible silver source;
(d) a toner; and
(e) a binder;
in which the reducing agent comprises a hydroxamic acid compound, and in which the toner comprises a mixture of phthalazine and a phthalic acid derivative.