Method for partially and selectively hydrogenating polymers...

Details Method for partially and selectively hydrogenating polymers... Method for partially and selectively hydrogenating polymers...

2007-12-04

2007-12-04

Rabago, Roberto (Department: 1796)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S331900, C525S338000, C525S370000

Reexamination Certificate

active

10565583

ABSTRACT:
The invention relates to a method for partially and selectively hydrogenating a polymer made of at least a conjugated diene monomer having a vinyl content of from 20 to 65%, comprising a hydrogenation step on a solution of the polymer, characterized in that the hydrogenation step is performed in the presence of an iron-containing catalyst whereby a hydrogenated polymer is obtained wherein the vinyl content is reduced to 5% or less, whereas the content of 1,4-double bonds is maintained at a level of at least 30%.

REFERENCES:
patent: 2893982 (1959-07-01), Campbell
patent: 3673281 (1972-06-01), Bronstert et al.
patent: 3700748 (1972-10-01), Winkler
patent: 3780138 (1973-12-01), Hassell et al.
patent: 4396761 (1983-08-01), Willis et al.
patent: 4595749 (1986-06-01), Hoxmeier
patent: 4992529 (1991-02-01), Hoxmeier
patent: 5057582 (1991-10-01), Hoxmeier et al.
patent: 5705571 (1998-01-01), Tsiang et al.
patent: 02/16449 (2002-02-01), None
patent: 02/34779 (2002-05-01), None
patent: 02/44281 (2002-06-01), None

Affiliated with

Also associated with

Rating

Method for partially and selectively hydrogenating polymers... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for partially and selectively hydrogenating polymers..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for partially and selectively hydrogenating polymers... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3841729