ES471391A1 - Polymer beads - Google Patents

Polymer beads

Info

Publication number
ES471391A1
ES471391A1 ES471391A ES471391A ES471391A1 ES 471391 A1 ES471391 A1 ES 471391A1 ES 471391 A ES471391 A ES 471391A ES 471391 A ES471391 A ES 471391A ES 471391 A1 ES471391 A1 ES 471391A1
Authority
ES
Spain
Prior art keywords
tertiary carbon
polymerization
oxygen
formula
branched alkyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES471391A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rohm and Haas Co
Original Assignee
Rohm and Haas Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rohm and Haas Co filed Critical Rohm and Haas Co
Publication of ES471391A1 publication Critical patent/ES471391A1/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/28Oxygen or compounds releasing free oxygen
    • C08F4/32Organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/08Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/16Organic material
    • B01J39/18Macromolecular compounds
    • B01J39/20Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F212/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
    • C08F212/02Monomers containing only one unsaturated aliphatic radical
    • C08F212/04Monomers containing only one unsaturated aliphatic radical containing one ring
    • C08F212/06Hydrocarbons
    • C08F212/08Styrene

Abstract

Process of preparing discrete, crosslinked, hard, copolymeric granules, characterized in that, being carried out by means of the polymerization of free radicals in an aqueous dispersion of a monomer mixture comprising from 50 to 99.5 mole percent of monoethylenically unsaturated monomer and 0 .5 to 50 mole percent of crosslinking monomer having at least two ethylenically unsaturated active groups, said polymerization is conducted in the presence of one or more peroxy catalysts of the formula: ** (Formula) ** in which R1 is a branched alkyl of 3 to 12 carbon atoms and having a secondary or tertiary carbon bonded to the carbonyl group and x is 1 or 2 and, when x is 1, R2 is a branched alkyl radical containing a tertiary carbon attached to oxygen and, when x is 2, R2 is an alkylene or aralkylene group, ending in either case with tertiary carbon atoms attached to oxygen. (Machine-translation by Google Translate, not legally binding)
ES471391A 1977-06-27 1978-06-27 Polymer beads Expired ES471391A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80995777A 1977-06-27 1977-06-27

Publications (1)

Publication Number Publication Date
ES471391A1 true ES471391A1 (en) 1979-01-16

Family

ID=25202592

Family Applications (1)

Application Number Title Priority Date Filing Date
ES471391A Expired ES471391A1 (en) 1977-06-27 1978-06-27 Polymer beads

Country Status (14)

Country Link
JP (2) JPS5411984A (en)
AR (1) AR228836A1 (en)
AU (1) AU521552B2 (en)
BE (1) BE868487A (en)
BR (1) BR7804015A (en)
CA (1) CA1114987A (en)
DE (1) DE2827475A1 (en)
ES (1) ES471391A1 (en)
FR (1) FR2396027A1 (en)
GB (1) GB1602064A (en)
IN (1) IN149312B (en)
IT (1) IT1111628B (en)
NL (1) NL7806892A (en)
ZA (1) ZA783340B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR7800684A (en) * 1977-02-07 1978-10-10 Rohm & Haas PERFECTED ION EXCHANGE RESIN BILLS, PROCESS TO PREPARE HARD, GRINDED, INDIVIDUALIZED COPOLIMER ACCOUNTS, AND PROCESS TO PRODUCE AN ION EXCHANGE RESIN
US4370459A (en) * 1980-07-07 1983-01-25 Argus Chemical Corporation Polymerizing unsaturated monomers with gem-diperoxyester catalyst
DE19714827A1 (en) * 1997-04-10 1998-10-15 Bayer Ag Process for the preparation of crosslinked spherical polymers
DE19826049A1 (en) * 1998-06-12 1999-12-16 Bayer Ag Process for the preparation of crosslinked spherical polymers
EP0964001A1 (en) * 1998-06-12 1999-12-15 Bayer Aktiengesellschaft Process for preparing microencapsulated polymers
JP4673662B2 (en) * 2005-04-26 2011-04-20 和 熊谷 Narrow depth compactor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974216C (en) * 1951-05-23 1960-10-20 Bayer Ag Process for the production of cation exchangers
FR1375170A (en) * 1962-08-27 1964-10-16 Sumitomo Chemical Co New copolymer of ethylene and styrene and its manufacturing process
US3474066A (en) * 1963-12-31 1969-10-21 Exxon Research Engineering Co Polymerizable compositions and process of producing same
FR1433480A (en) * 1965-02-16 1966-04-01 Wolfen Filmfab Veb Process for the preparation of spherical, weakly crosslinked polymer particles and products thus obtained
DE1301514B (en) * 1966-02-15 1969-08-21 Elektrochem Werke Muenchen Ag Process for the polymerization and copolymerization of olefinic compounds

Also Published As

Publication number Publication date
CA1114987A (en) 1981-12-22
AU521552B2 (en) 1982-04-08
FR2396027A1 (en) 1979-01-26
ZA783340B (en) 1979-07-25
NL7806892A (en) 1978-12-29
IT7868500A0 (en) 1978-06-26
JPS5411984A (en) 1979-01-29
DE2827475A1 (en) 1979-01-11
DE2827475C2 (en) 1989-10-12
AU3745278A (en) 1980-01-03
GB1602064A (en) 1981-11-04
FR2396027B1 (en) 1980-10-31
AR228836A1 (en) 1983-04-29
JPS627921B2 (en) 1987-02-19
IN149312B (en) 1981-10-24
BE868487A (en) 1978-12-27
BR7804015A (en) 1979-02-20
IT1111628B (en) 1986-01-13
JPS6414206A (en) 1989-01-18

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