Stock material or miscellaneous articles – Composite – Of metal
Patent
1978-12-26
1980-08-12
Esposito, Michael F.
Stock material or miscellaneous articles
Composite
Of metal
106 3822, 264338, 427135, 252 11, 252 52A, 2604105, 560254, B32B 1504
Patent
active
042173949
ABSTRACT:
There are disclosed mold-release compositions suitable for lubricating metal molds which are used in molding natural and synthetic rubber and other polymers. The mold release agents of the invention are oxidation-stable homopolymer and copolymer, i.e., block or heteric polyoxyalkylene lubricant compounds. The lubricants of the invention can be used alone or in mixtures with prior art polyoxyalkylene lubricant compounds. The polyoxyalkylene mold release lubricants of the invention have the formula: ##STR1## R is individually selected from alkyl groups of 1 to about 21 carbon atoms, preferably about 7 to about 21 carbon atoms, and most preferably about 12 to about 18 carbon atoms. In lubricants I and III, R.sub.1 and R.sub.2 are the residue of the same or different and in lubricant II different alkylene units, all individually selected from the group consisting of the residue of ethylene oxide, propylene oxide, butylene oxide and an aromatic glycidyl ether, R.sub.3 is the residue of a difunctional phenol, R.sub.4 is hydrogen, an acyl or alkyl group and where alkyl, derived from an aliphatic monofunctional alcohol having 1 to about 21 carbon atoms, preferably about 4 to about 18 carbon atoms and most preferably about 4 to about 12 carbon atoms or where acyl derived from an aliphatic monocarboxylic acid of 2 to about 21 carbon atoms, preferably about 4 to about 18 carbon atoms and most preferably about 6 to about 12 carbon atoms, R.sub.5 is the residue of an aromatic glycidyl ether, preferably a phenyl glycidyl ether and n or m+n have a value to produce a molecular weight of about 300 to about 6000, preferably about 600 to about 5000 and most preferably about 1000 to about 4000.
REFERENCES:
patent: 2677700 (1954-05-01), Jackson et al.
patent: 2784108 (1957-03-01), Cupper
patent: 2786080 (1957-03-01), Patton
patent: 3146272 (1964-08-01), Lloyd
patent: 3253932 (1966-05-01), White
patent: 3278473 (1966-10-01), Judd
patent: 3504081 (1970-03-01), Area
patent: 3551553 (1970-12-01), Shannon
patent: 3578594 (1971-05-01), Dombrow
patent: 3925588 (1975-12-01), Marshall et al.
Login Robert B.
Newkirk David D.
Thir Basil
BASF Wyandotte Corporation
Childs Sadie L.
Esposito Michael F.
Pierce Andrew E.
LandOfFree
Metal molds coated with oxidative stable polyoxyalkylene release does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metal molds coated with oxidative stable polyoxyalkylene release, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal molds coated with oxidative stable polyoxyalkylene release will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2182849