PT93964A - Process for the preparation of new fire propagation retardant compositions containing an oxyacid phosphate or sulphate - Google Patents

Process for the preparation of new fire propagation retardant compositions containing an oxyacid phosphate or sulphate

Info

Publication number
PT93964A
PT93964A PT9396490A PT9396490A PT93964A PT 93964 A PT93964 A PT 93964A PT 9396490 A PT9396490 A PT 9396490A PT 9396490 A PT9396490 A PT 9396490A PT 93964 A PT93964 A PT 93964A
Authority
PT
Portugal
Prior art keywords
oxyacid
sulphate
phosphate
preparation
composition
Prior art date
Application number
PT9396490A
Other languages
Portuguese (pt)
Other versions
PT93964B (en
Inventor
Raymond W Green
Original Assignee
Tag Investments Ltd
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 Tag Investments Ltd filed Critical Tag Investments Ltd
Priority to PT9396490A priority Critical patent/PT93964B/en
Publication of PT93964A publication Critical patent/PT93964A/en
Publication of PT93964B publication Critical patent/PT93964B/en

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  • Fireproofing Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A process is described for the preparation of a new composition which makes it possible to confer fire propagation retarding properties onto synthetic polymer materials, which comprises precipitating a solid composition of an aqueous mixture of an oxyacid phosphate or sulphate, an amine and a surfactant, dissolving the oxyacid in a minimum volume of boiling water, adding the amine and the surfactant to the boiling water and the oxyacid, heating and stirring the boiling mixture until the solid composition precipitates completely, separating the composition from the mixture by filtration and finally grinding the composition to obtain the fire propagation retardant additive.
PT9396490A 1990-05-04 1990-05-04 A process for the preparation of new flame retardant compositions of the propaga- tion containing an oxidative phosphate or sulfate PT93964B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PT9396490A PT93964B (en) 1990-05-04 1990-05-04 A process for the preparation of new flame retardant compositions of the propaga- tion containing an oxidative phosphate or sulfate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT9396490A PT93964B (en) 1990-05-04 1990-05-04 A process for the preparation of new flame retardant compositions of the propaga- tion containing an oxidative phosphate or sulfate

Publications (2)

Publication Number Publication Date
PT93964A true PT93964A (en) 1991-11-29
PT93964B PT93964B (en) 1996-12-31

Family

ID=20084725

Family Applications (1)

Application Number Title Priority Date Filing Date
PT9396490A PT93964B (en) 1990-05-04 1990-05-04 A process for the preparation of new flame retardant compositions of the propaga- tion containing an oxidative phosphate or sulfate

Country Status (1)

Country Link
PT (1) PT93964B (en)

Also Published As

Publication number Publication date
PT93964B (en) 1996-12-31

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Legal Events

Date Code Title Description
BB1A Laying open of patent application

Effective date: 19900521

FG3A Patent granted, date of granting

Effective date: 19960911

MM3A Annulment or lapse

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

Effective date: 19980331