NO165672C - Fremgangsmaate for retardering av stoerkningen av en vandigsementoppslemming ved tilsetning av metylenfosfonsyre-preparater fremstilt ut fra aminohydrokarbyl-piperazin-urinstoffaddukter. - Google Patents

Fremgangsmaate for retardering av stoerkningen av en vandigsementoppslemming ved tilsetning av metylenfosfonsyre-preparater fremstilt ut fra aminohydrokarbyl-piperazin-urinstoffaddukter.

Info

Publication number: NO165672C
Authority: NO; Norway
Prior art keywords: retarding; procedure; strength; addition; phosphonic acid
Prior art date: 1983-09-02

Application number

NO851709A

Other languages

English (en)

Other versions

NO165672B (no

NO851709L (no

Inventor

Druce K Crump

David A Wilson

Original Assignee

Dow Chemical 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.)

1983-09-02

Filing date

1985-04-30

Publication date

1991-03-20

1983-09-02 Priority claimed from US06/528,831 external-priority patent/US4472200A/en

1985-04-30 Application filed by Dow Chemical Co filed Critical Dow Chemical Co

1985-04-30 Publication of NO851709L publication Critical patent/NO851709L/no

1990-12-10 Publication of NO165672B publication Critical patent/NO165672B/no

1991-03-20 Publication of NO165672C publication Critical patent/NO165672C/no

Links

-1 Methylene Phosphonic Acid Chemical compound 0.000 title 1
239000004568 cement Substances 0.000 title 1
125000001183 hydrocarbyl group Chemical group 0.000 title 1
238000000034 method Methods 0.000 title 1
QHTPSODXPLCXJB-UHFFFAOYSA-N piperazine;urea Chemical compound NC(N)=O.C1CNCCN1 QHTPSODXPLCXJB-UHFFFAOYSA-N 0.000 title 1
238000002360 preparation method Methods 0.000 title 1
125000002924 primary amino group Chemical group [H]N([H])* 0.000 title 1
230000000979 retarding effect Effects 0.000 title 1
239000000126 substance Substances 0.000 title 1
239000000725 suspension Substances 0.000 title 1

NO851709A 1983-09-02 1985-04-30 Fremgangsmaate for retardering av stoerkningen av en vandigsementoppslemming ved tilsetning av metylenfosfonsyre-preparater fremstilt ut fra aminohydrokarbyl-piperazin-urinstoffaddukter. NO165672C (no)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US06/528,831 US4472200A (en)	1983-09-02	1983-09-02	New additives for retarding setting of cement from methylenephosphonated aminohydrocarbylpiperazine-urea adducts
PCT/US1984/001235 WO1985001043A1 (en)	1983-09-02	1984-08-07	Use of methylene phosphonic acid compositions derived from aminohydrocarbylpiperazineurea adducts as cement retarders

Publications (3)

Publication Number	Publication Date
NO851709L NO851709L (no)	1985-04-30
NO165672B NO165672B (no)	1990-12-10
NO165672C true NO165672C (no)	1991-03-20

Family

ID=26770371

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO851709A NO165672C (no)	1983-09-02	1985-04-30	Fremgangsmaate for retardering av stoerkningen av en vandigsementoppslemming ved tilsetning av metylenfosfonsyre-preparater fremstilt ut fra aminohydrokarbyl-piperazin-urinstoffaddukter.

Country Status (1)

Country	Link
NO (1)	NO165672C (no)

1985
- 1985-04-30 NO NO851709A patent/NO165672C/no unknown

Also Published As

Publication number	Publication date
NO165672B (no)	1990-12-10
NO851709L (no)	1985-04-30

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