PT95139A - Process for the preparation of soil conditioning agents based on cross-linked copolymers containing sulphonic acid groups - Google Patents

Process for the preparation of soil conditioning agents based on cross-linked copolymers containing sulphonic acid groups

Info

Publication number
PT95139A
PT95139A PT9513990A PT9513990A PT95139A PT 95139 A PT95139 A PT 95139A PT 9513990 A PT9513990 A PT 9513990A PT 9513990 A PT9513990 A PT 9513990A PT 95139 A PT95139 A PT 95139A
Authority
PT
Portugal
Prior art keywords
sulphonic acid
conditioning agents
preparation
soil conditioning
cross
Prior art date
Application number
PT9513990A
Other languages
Portuguese (pt)
Other versions
PT95139B (en
Inventor
Stefan Pieh
Johann Krammer
Original Assignee
Chemie Linz Gmbh
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 Chemie Linz Gmbh filed Critical Chemie Linz Gmbh
Publication of PT95139A publication Critical patent/PT95139A/en
Publication of PT95139B publication Critical patent/PT95139B/en

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention relates to a process for the preparation of soil conditioning agents based on cross-linked copolymers containing sulphonic acid groups which comprises the copolymerization of a mixture of monomers formed from acrylamide and/or methacrylamide, a substituted acrylamide containing a sulphonic acid group, a vinyl compound with multiple functional groups which is soluble in water, and, possibly, co-monomers containing carboxyl groups, the copolymers being used as soil conditioning agents.
PT9513990A 1989-08-31 1990-08-29 PROCESS FOR THE PREPARATION OF SOIL CONDITIONING AGENTS BASED ON REOLULATED COPOLYMERS CONTAINING SULFONIC ACID GROUPS PT95139B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPJ205089 1989-08-31

Publications (2)

Publication Number Publication Date
PT95139A true PT95139A (en) 1991-05-22
PT95139B PT95139B (en) 1997-05-28

Family

ID=3773611

Family Applications (1)

Application Number Title Priority Date Filing Date
PT9513990A PT95139B (en) 1989-08-31 1990-08-29 PROCESS FOR THE PREPARATION OF SOIL CONDITIONING AGENTS BASED ON REOLULATED COPOLYMERS CONTAINING SULFONIC ACID GROUPS

Country Status (1)

Country Link
PT (1) PT95139B (en)

Also Published As

Publication number Publication date
PT95139B (en) 1997-05-28

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Legal Events

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BB1A Laying open of patent application

Effective date: 19901210

FG3A Patent granted, date of granting

Effective date: 19970227

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20000831