FR2242210A1 - Finely divided elastomer powder prodn - by cooling below brittleness temp, grinding, and combining with anti-agglomerant - Google Patents

Finely divided elastomer powder prodn - by cooling below brittleness temp, grinding, and combining with anti-agglomerant

Info

Publication number
FR2242210A1
FR2242210A1 FR7331624A FR7331624A FR2242210A1 FR 2242210 A1 FR2242210 A1 FR 2242210A1 FR 7331624 A FR7331624 A FR 7331624A FR 7331624 A FR7331624 A FR 7331624A FR 2242210 A1 FR2242210 A1 FR 2242210A1
Authority
FR
France
Prior art keywords
grinding
agglomerant
combining
finely divided
cooling below
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
FR7331624A
Other languages
French (fr)
Other versions
FR2242210B3 (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.)
BOC Group Ltd
Original Assignee
British Oxigen 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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to FR7331624A priority Critical patent/FR2242210A1/en
Publication of FR2242210A1 publication Critical patent/FR2242210A1/en
Application granted granted Critical
Publication of FR2242210B3 publication Critical patent/FR2242210B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/251—Particles, powder or granules

Abstract

Elastomers are powdered by (a) cooling the elastomer by combing with a liq. cooling agent or its vapours to a temp. lying below its brittleness temp., (b) grinding the brittle elastomer, and (c) combining with an anti-agglomerant. efficient grinding is obtd. with low energy use. prodt. remains free-flowing.
FR7331624A 1973-08-31 1973-08-31 Finely divided elastomer powder prodn - by cooling below brittleness temp, grinding, and combining with anti-agglomerant Granted FR2242210A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7331624A FR2242210A1 (en) 1973-08-31 1973-08-31 Finely divided elastomer powder prodn - by cooling below brittleness temp, grinding, and combining with anti-agglomerant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7331624A FR2242210A1 (en) 1973-08-31 1973-08-31 Finely divided elastomer powder prodn - by cooling below brittleness temp, grinding, and combining with anti-agglomerant

Publications (2)

Publication Number Publication Date
FR2242210A1 true FR2242210A1 (en) 1975-03-28
FR2242210B3 FR2242210B3 (en) 1976-07-30

Family

ID=9124521

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7331624A Granted FR2242210A1 (en) 1973-08-31 1973-08-31 Finely divided elastomer powder prodn - by cooling below brittleness temp, grinding, and combining with anti-agglomerant

Country Status (1)

Country Link
FR (1) FR2242210A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050515A1 (en) * 1980-10-20 1982-04-28 Paul F. Waters Process for solid state free radical reactions
US4440916A (en) * 1980-10-20 1984-04-03 General Technology Applications, Inc. Process for solid state free radical reactions
EP0208016A1 (en) * 1985-05-28 1987-01-14 Conoco Phillips Company Preparation of cold flow resistant polymer powder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050515A1 (en) * 1980-10-20 1982-04-28 Paul F. Waters Process for solid state free radical reactions
US4440916A (en) * 1980-10-20 1984-04-03 General Technology Applications, Inc. Process for solid state free radical reactions
EP0208016A1 (en) * 1985-05-28 1987-01-14 Conoco Phillips Company Preparation of cold flow resistant polymer powder

Also Published As

Publication number Publication date
FR2242210B3 (en) 1976-07-30

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Legal Events

Date Code Title Description
ST Notification of lapse