FR2366320A1 - PROCESS FOR THE PREPARATION OF FLUID PERMEABLE POLYURETHANE FOAMS CONTAINING SMALL QUANTITIES OF AROMATIC AMINES THAT MAY EXHAUST - Google Patents

PROCESS FOR THE PREPARATION OF FLUID PERMEABLE POLYURETHANE FOAMS CONTAINING SMALL QUANTITIES OF AROMATIC AMINES THAT MAY EXHAUST

Info

Publication number
FR2366320A1
FR2366320A1 FR7729078A FR7729078A FR2366320A1 FR 2366320 A1 FR2366320 A1 FR 2366320A1 FR 7729078 A FR7729078 A FR 7729078A FR 7729078 A FR7729078 A FR 7729078A FR 2366320 A1 FR2366320 A1 FR 2366320A1
Authority
FR
France
Prior art keywords
preparation
polyurethane foams
exhaust
small quantities
aromatic amines
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.)
Granted
Application number
FR7729078A
Other languages
French (fr)
Other versions
FR2366320B1 (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.)
GCP Products UK Ltd
WR Grace and Co Conn
Original Assignee
WR Grace Ltd
WR Grace and Co Conn
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 WR Grace Ltd, WR Grace and Co Conn filed Critical WR Grace Ltd
Publication of FR2366320A1 publication Critical patent/FR2366320A1/en
Application granted granted Critical
Publication of FR2366320B1 publication Critical patent/FR2366320B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/7806—Nitrogen containing -N-C=0 groups
    • C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
    • C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • C08G18/724—Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • C08G18/725—Combination of polyisocyanates of C08G18/78 with other polyisocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

La présente invention concerne des mousses de polyuréthanne. L'invention concerne plus particulièrement l'élimination de matériaux résiduels pouvant présenter un risque pour la santé dans les mousses hydrophiles. Ce but est atteint en incluant soit dans le mélange réactionnel dans le cas du procédé en une passe, soit dans le mélange de prépolymère et d'eau, dans le cas du procédé au prépolymère, un accepteur, plus particulièrement un isocyanate aliphatique tel que le 4,4 -méthylène-biscyclohexyldiisocyanate. L'invention est plus particulièrement utilisable pour la préparation de mousses pouvant venir en contact avec le corps humain, en particulier lors d'une utilisation en chirurgie.The present invention relates to polyurethane foams. The invention relates more particularly to the removal of residual materials which may present a risk to health in hydrophilic foams. This object is achieved by including either in the reaction mixture in the case of the one-pass process, or in the mixture of prepolymer and water, in the case of the prepolymer process, an acceptor, more particularly an aliphatic isocyanate such as 4,4-methylene-biscyclohexyldiisocyanate. The invention can be used more particularly for the preparation of foams which can come into contact with the human body, in particular during use in surgery.

FR7729078A 1976-09-29 1977-09-27 PROCESS FOR THE PREPARATION OF FLUID PERMEABLE POLYURETHANE FOAMS CONTAINING SMALL QUANTITIES OF AROMATIC AMINES THAT MAY EXHAUST Granted FR2366320A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72846476A 1976-09-29 1976-09-29
US83162877A 1977-09-08 1977-09-08

Publications (2)

Publication Number Publication Date
FR2366320A1 true FR2366320A1 (en) 1978-04-28
FR2366320B1 FR2366320B1 (en) 1984-07-27

Family

ID=27111696

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729078A Granted FR2366320A1 (en) 1976-09-29 1977-09-27 PROCESS FOR THE PREPARATION OF FLUID PERMEABLE POLYURETHANE FOAMS CONTAINING SMALL QUANTITIES OF AROMATIC AMINES THAT MAY EXHAUST

Country Status (10)

Country Link
JP (1) JPS5359793A (en)
AU (1) AU509980B2 (en)
DE (1) DE2743126A1 (en)
FI (1) FI772840A (en)
FR (1) FR2366320A1 (en)
GB (1) GB1565124A (en)
IT (1) IT1143694B (en)
NL (1) NL183653C (en)
NZ (1) NZ185278A (en)
SE (1) SE437994B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441637A1 (en) * 1978-11-20 1980-06-13 Grace W R Ltd PROCESS AND ADDITIVES TO REDUCE THE CONTENT OF HARMFUL AROMATIC AMINES IN POLYURETHANE FOAMS
FR2539420A1 (en) * 1983-01-17 1984-07-20 Grace W R Ltd HIGH MOLECULAR WEIGHT AROMATIC AMINE PURIFYING AGENTS, MIXTURE FOR THE PREPARATION OF HYDROPHILIC POLYURETHANE FOAMS AND RETICULATED HYDROPHILIC FOAMS

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9108552D0 (en) * 1991-04-22 1991-06-05 Shell Int Research A process for preparing soft,flexible water-blown foams,and soft,flexible water-blown foams so prepared
DE19928676A1 (en) 1999-06-23 2000-12-28 Basf Ag Polyisocyanate poly-addition product, e.g. flexible polyurethane foam for cushions and padding, contains hydrophobic compounds and other special modifiers, e.g. metal salt, anhydride, sulfone or unsaturated acid
DE10158154A1 (en) 2001-11-28 2003-06-18 Bayer Ag Release agent and process for the production of molded plastic parts
WO2021191096A1 (en) * 2020-03-27 2021-09-30 Covestro Deutschland Ag Flexible polyurethane foam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441637A1 (en) * 1978-11-20 1980-06-13 Grace W R Ltd PROCESS AND ADDITIVES TO REDUCE THE CONTENT OF HARMFUL AROMATIC AMINES IN POLYURETHANE FOAMS
FR2539420A1 (en) * 1983-01-17 1984-07-20 Grace W R Ltd HIGH MOLECULAR WEIGHT AROMATIC AMINE PURIFYING AGENTS, MIXTURE FOR THE PREPARATION OF HYDROPHILIC POLYURETHANE FOAMS AND RETICULATED HYDROPHILIC FOAMS

Also Published As

Publication number Publication date
FI772840A (en) 1978-03-30
AU2916577A (en) 1979-04-05
DE2743126C2 (en) 1992-05-27
FR2366320B1 (en) 1984-07-27
NL7710525A (en) 1978-03-31
DE2743126A1 (en) 1978-04-06
JPS6246567B2 (en) 1987-10-02
AU509980B2 (en) 1980-06-05
NZ185278A (en) 1980-04-28
NL183653C (en) 1988-12-16
SE437994B (en) 1985-03-25
NL183653B (en) 1988-07-18
IT1143694B (en) 1986-10-22
GB1565124A (en) 1980-04-16
SE7710742L (en) 1978-03-30
JPS5359793A (en) 1978-05-29

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse