Process for preparing ionically crosslinked copolymers

Details Process for preparing ionically crosslinked copolymers Process for preparing ionically crosslinked copolymers

1973-10-29

1976-07-13

Seccuro, Carman J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 23AR, 260DIG31, 526 14, 526 47, C08L 2308

Patent

active

039694348

ABSTRACT:
Process for ionically crosslinking first copolymers formed by copolymerizing at least one alpha-olefin of the general formula RCH=CH.sub.2 where R is hydrogen or hydrocarbyl having 1 to 8 carbon atoms and at least one alpha, beta-ethylenically unsaturated carboxylic acid having 1 to 2 carboxylic acid groups and 3 to 8 carbon atoms, the alpha-olefin content of the first copolymer comprising at least 50 mole percent of the first copolymer, the alpha, beta-ethylenically unsaturated acid content of said first copolymer comprising 0.2 to 25 mole percent of the first copolymer which comprises mixing the first copolymer with a cation-supplying blend of 20 to 80 percent by weight of substantially water-insoluble zinc oxide and/or zinc hydroxide and/or zinc carbonate, 0 to 10 percent by weight of a lubricant and a complemental amount of a second copolymer with a melt index of 50 to 2000 g./10 min. formed as the first copolymer, at a pressure of 100 to 10,000 p.s.i., at a temperature above the melting point of both the first and second copolymers and between 100.degree.C. and 330.degree.C., with the amount of the cation-supplying blend present being that amount which has sufficient cations to neutralize at least 10 percent of the carboxylic acid groups in the first and second copolymers and neutralizing at least 10 percent of the carboxylic acid groups in the first and second copolymers, characterized in that there is present during the crosslinking reaction, 0.5 to 20 percent by weight, based on the total weight of the cation-supplying blend, of at least one zinc salt of a volatile organic acid.

REFERENCES:
patent: 3404134 (1968-10-01), Rees
patent: 3437718 (1969-04-01), Rees
patent: 3649578 (1972-03-01), Bush
patent: 3819768 (1974-06-01), Molitor

Affiliated with

Also associated with

Rating

Process for preparing ionically crosslinked copolymers 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 preparing ionically crosslinked copolymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing ionically crosslinked copolymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1739844