Process for producing polyoxymethylene

Details Process for producing polyoxymethylene Process for producing polyoxymethylene

1979-11-01

1981-01-20

Phynes, Lucille M.

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

Synthetic resins

From aldehyde or derivative thereof as reactant

525398, 528242, 528243, 260 457R, 260 457P, 260 4575R, C08G 208

Patent

active

042463963

ABSTRACT:
Polyoxymethylene having high molecular weight and high thermal stability is produced by polymerizing formaldehyde in the presence of a specific catalyst and then heating the resulting polyoxymethylene. The specific catalyst is produced by contacting a phosphorus containing compound or an amine (c) with a reaction product obtained by reacting salicylic acid component (b) with an organoaluminum compound (a) having the formula ##STR1## wherein R.sup.1 represents an alkyl or alkoxyl group and R.sup.2 and R.sup.3 respectively represent alkyl or alkoxyl group or a halogen atom.

REFERENCES:
patent: 3278635 (1966-10-01), Bastian
patent: 3347831 (1967-10-01), Naro et al.
patent: 3349044 (1967-10-01), Spitzer
patent: 4158729 (1979-06-01), Kimura et al.

Affiliated with

Also associated with

Rating

Process for producing polyoxymethylene does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing polyoxymethylene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing polyoxymethylene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1767717