ES8604997A1 - Acrylic acid (co)polymer (salt) prepn. in aq. medium - Google Patents

Acrylic acid (co)polymer (salt) prepn. in aq. medium

Info

Publication number
ES8604997A1
ES8604997A1 ES549073A ES549073A ES8604997A1 ES 8604997 A1 ES8604997 A1 ES 8604997A1 ES 549073 A ES549073 A ES 549073A ES 549073 A ES549073 A ES 549073A ES 8604997 A1 ES8604997 A1 ES 8604997A1
Authority
ES
Spain
Prior art keywords
medium
prepn
salt
polymer
acrylic acid
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
ES549073A
Other languages
Spanish (es)
Other versions
ES549073A0 (en
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.)
Laboratorios Miret SA
Original Assignee
Laboratorios Miret SA
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 Laboratorios Miret SA filed Critical Laboratorios Miret SA
Priority to ES549073A priority Critical patent/ES8604997A1/en
Publication of ES8604997A1 publication Critical patent/ES8604997A1/en
Publication of ES549073A0 publication Critical patent/ES549073A0/en
Priority to FI864528A priority patent/FI91161C/en
Priority to DE3638222A priority patent/DE3638222C2/en
Priority to FR868615889A priority patent/FR2590261B1/en
Priority to BE0/217414A priority patent/BE905762A/en
Priority to NLAANVRAGE8602944,A priority patent/NL189302C/en
Priority to CH4654/86A priority patent/CH670647A5/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/04—Acids, Metal salts or ammonium salts thereof
    • C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Graft Or Block Polymers (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

Prepn. is claimed of aq. of polyacrylic acids, copolymers of these substances or their corresp. salts using polymerisation catalysts formed by NH4, Na or K salts of persulphuric acid, H2O2 and organic peroxides or by oxidn.-redn. pairs of the preceding substances with Na metalisulphite, Na bisulphite and ascorbic acid, in an aq. medium and open atmos. - The improvement is the gradual and programme addition of the monomers and catalysts to a certain initial amt. of water kept at 5-15 deg.C, the reaction medium being heated for 4-5 hrs., to temps. not lower than 70 deg.C and, after cooling, neutralising the reaction prod. with an alkali hydroxide.
ES549073A 1985-11-20 1985-11-20 Acrylic acid (co)polymer (salt) prepn. in aq. medium Expired ES8604997A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES549073A ES8604997A1 (en) 1985-11-20 1985-11-20 Acrylic acid (co)polymer (salt) prepn. in aq. medium
FI864528A FI91161C (en) 1985-11-20 1986-11-07 Process for preparing aqueous solutions of polyacrylic acids, their copolymers and salts
DE3638222A DE3638222C2 (en) 1985-11-20 1986-11-08 Process for the preparation of aqueous solutions of low molecular weight polyacrylic acids with reproducible molecular weight
FR868615889A FR2590261B1 (en) 1985-11-20 1986-11-14 PROCESS FOR OBTAINING AQUEOUS SOLUTIONS OF POLYACRYLIC ACIDS, COPOLYMERS OF SUCH SUBSTANCES AND THEIR CORRESPONDING SALTS
BE0/217414A BE905762A (en) 1985-11-20 1986-11-17 PROCESS FOR OBTAINING AQUEOUS SOLUTIONS OF POLYACRYLIC ACIDS, COPOLYMERS OF SUCH SUBSTANCES AND THEIR CORRESPONDING SALTS.
NLAANVRAGE8602944,A NL189302C (en) 1985-11-20 1986-11-19 Process for the preparation of aqueous solutions of polyacrylic acids, of copolymers of these compounds and of their corresponding salts.
CH4654/86A CH670647A5 (en) 1985-11-20 1986-11-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES549073A ES8604997A1 (en) 1985-11-20 1985-11-20 Acrylic acid (co)polymer (salt) prepn. in aq. medium

Publications (2)

Publication Number Publication Date
ES8604997A1 true ES8604997A1 (en) 1986-03-01
ES549073A0 ES549073A0 (en) 1986-03-01

Family

ID=8490223

Family Applications (1)

Application Number Title Priority Date Filing Date
ES549073A Expired ES8604997A1 (en) 1985-11-20 1985-11-20 Acrylic acid (co)polymer (salt) prepn. in aq. medium

Country Status (7)

Country Link
BE (1) BE905762A (en)
CH (1) CH670647A5 (en)
DE (1) DE3638222C2 (en)
ES (1) ES8604997A1 (en)
FI (1) FI91161C (en)
FR (1) FR2590261B1 (en)
NL (1) NL189302C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2050617A1 (en) * 1992-10-22 1994-05-16 Miret Lab Aqueous solutions of acrylic polymers.

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0830098B2 (en) * 1987-07-16 1996-03-27 日本合成化学工業株式会社 Super absorbent resin manufacturing method
DE4419568A1 (en) * 1994-06-03 1995-12-07 Henkel Kgaa Process for the production of low molecular weight polyacrylic acids with a narrow molecular weight distribution in a tubular reactor
EP0942015B1 (en) * 1998-03-06 2004-05-12 Nippon Shokubai Co., Ltd. (Meth)acrylic acid polymer and manufacturing method thereof
US6297336B1 (en) 1998-07-02 2001-10-02 Nippon Shokubai Co., Ltd. Detergent builder, production process therefor, and poly(meth)acrylic acid (or salt) polymer and use thereof
DE10015135A1 (en) * 2000-03-29 2001-10-04 Basf Ag Process for modifying polymers containing acid groups
US6998453B2 (en) 2001-10-03 2006-02-14 Nippon Shokubai Co., Ltd. (Meth)acrylic acid type polymer and unsaturated polyalkylene glycol type copolymer, and methods for production thereof
CN103172784A (en) * 2011-12-23 2013-06-26 何寒 Technical process capable of manually producing water-retaining agent

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD124652A1 (en) * 1975-12-31 1977-03-09
BR8000357A (en) * 1979-01-22 1980-10-07 Rohm & Haas PROCESS FOR THE PREPARATION OF A HYDRO-SOLUBLE POLYMER HAVING A MOLECULAR WEIGHT OF UP TO ABOUT 50,000
DE3031672A1 (en) * 1979-08-24 1981-06-11 Rhône-Poulenc Industries, 75008 Paris METHOD FOR PRODUCING AQUEOUS SOLUTIONS OF POLYACRYLIC ACIDS OF LOW MOLECULAR WEIGHT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2050617A1 (en) * 1992-10-22 1994-05-16 Miret Lab Aqueous solutions of acrylic polymers.

Also Published As

Publication number Publication date
NL189302C (en) 1993-03-01
CH670647A5 (en) 1989-06-30
DE3638222C2 (en) 1996-02-22
BE905762A (en) 1987-03-16
NL189302B (en) 1992-10-01
FI864528A0 (en) 1986-11-07
FI864528A (en) 1987-05-21
FI91161B (en) 1994-02-15
FR2590261A1 (en) 1987-05-22
FR2590261B1 (en) 1989-03-03
ES549073A0 (en) 1986-03-01
FI91161C (en) 1994-05-25
NL8602944A (en) 1987-06-16
DE3638222A1 (en) 1987-05-21

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Legal Events

Date Code Title Description
GC1A Exploitation certificate registered application without search report

Effective date: 19980317