Multifunctional initiator from divinyl dislane

Details Multifunctional initiator from divinyl dislane Multifunctional initiator from divinyl dislane

1996-03-21

1997-02-25

Teskin, Fred M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526180, 526181, 5263402, 525272, 525308, 525310, 5253331, 5253332, 5253333, 525385, 502155, 502156, 502157, 556431, 556435, 260665R, C08F 448, C07F 708

Patent

active

056059914

ABSTRACT:
A multifunctional initiator is prepared by contacting an organo-alkali metal compound with a silane represented by the formula: ##STR1## wherein the R' are generally lower alkyl groups such as methyl and the R" is generally an .paren open-st.CH.sub.2 .paren close-st..sub.n group with n=2. Superior results are obtained presumably because of the separation of the vinyl groups and the greater solubility of the compound because of the R' groups. The resulting catalyst initiates polymerization of monomers such as conjugated dienes and monovinyl substituted aromatic compounds to give relatively monodispersed polymers with little or no crosslinking.

REFERENCES:
patent: 3383377 (1968-05-01), Uraneck et al.
patent: 3485857 (1969-12-01), Speier
patent: 3555066 (1971-01-01), Le Grow
patent: 3624057 (1971-11-01), Farrar
patent: 3637899 (1972-01-01), Sergoevich et al.
patent: 3784637 (1974-01-01), Farrar
patent: 3959412 (1976-05-01), Oberlin
patent: 4145498 (1979-03-01), Farrar
patent: 4278774 (1981-07-01), Nametkin et al.
patent: 4704438 (1987-11-01), Niwa et al.
patent: 4843120 (1989-07-01), Halasa et al.
Auner, N, "Reaktionen Methyl-und Trimethylsubstituierter Vinylsilane-bzw. -Disilane mit LiBu.sup.t ", J. of Organometallic Chem., 336 (1987) 59-81.
Oku, J. et al., "Anionic Polymerization of Vinylsilanes II. Mechanism of Isomerization in the Polymerization of Trimethylvinylsilane with Butyllithium-N,N,N', N'-tetramethylethylenediamine", Polymer J., vol. 23, No. 3, pp. 195-199 (1991).

Affiliated with

Also associated with

Rating

Multifunctional initiator from divinyl dislane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multifunctional initiator from divinyl dislane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multifunctional initiator from divinyl dislane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1974694