FR2307846A1 - Mineral carbonates as additives for reprocessing thermoplastics - rto reduce work temps. and promote blending - Google Patents

Mineral carbonates as additives for reprocessing thermoplastics - rto reduce work temps. and promote blending

Info

Publication number
FR2307846A1
FR2307846A1 FR7512044A FR7512044A FR2307846A1 FR 2307846 A1 FR2307846 A1 FR 2307846A1 FR 7512044 A FR7512044 A FR 7512044A FR 7512044 A FR7512044 A FR 7512044A FR 2307846 A1 FR2307846 A1 FR 2307846A1
Authority
FR
France
Prior art keywords
temps
thermoplastics
carbonates
rto
reprocessing
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
FR7512044A
Other languages
French (fr)
Other versions
FR2307846B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7512044A priority Critical patent/FR2307846A1/en
Publication of FR2307846A1 publication Critical patent/FR2307846A1/en
Application granted granted Critical
Publication of FR2307846B1 publication Critical patent/FR2307846B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Working thermoplastics material, esp. PVC based cpds at temps. significantly e.g. 80 degrees C below the thermoplastic(s) with a mixt. of neutral and acidic Na carbonates. The polymer/carbonate mixtures contain 3-40 pref. 5-20% wt. of carbonates. Suitable for extruding, moulding calendering heat sensitive virgin or recovered polymers or blends of semi compatible or incompatible thermoplastics, esp. mixts. including rigid or plasticised PVC and (high density)polyethylene. Good for soil or drain pipes requiring tough low density wall with a closed cell structure. Processing at low temps. inhibits (further) thermal degradation of the plastics. The mixing and processing viscosity is greatly reduced by in situ release of blowing agents.
FR7512044A 1975-04-14 1975-04-14 Mineral carbonates as additives for reprocessing thermoplastics - rto reduce work temps. and promote blending Granted FR2307846A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7512044A FR2307846A1 (en) 1975-04-14 1975-04-14 Mineral carbonates as additives for reprocessing thermoplastics - rto reduce work temps. and promote blending

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7512044A FR2307846A1 (en) 1975-04-14 1975-04-14 Mineral carbonates as additives for reprocessing thermoplastics - rto reduce work temps. and promote blending

Publications (2)

Publication Number Publication Date
FR2307846A1 true FR2307846A1 (en) 1976-11-12
FR2307846B1 FR2307846B1 (en) 1977-11-18

Family

ID=9154104

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7512044A Granted FR2307846A1 (en) 1975-04-14 1975-04-14 Mineral carbonates as additives for reprocessing thermoplastics - rto reduce work temps. and promote blending

Country Status (1)

Country Link
FR (1) FR2307846A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826897A (en) * 1986-12-30 1989-05-02 E. I. Dupont De Nemours And Company Process for reclaiming polyethylene terephalate scrap contaminated with chlorine-containing polymer
US4870110A (en) * 1986-12-30 1989-09-26 E. I. Dupont De Nemours And Company Process for reclaiming polyethylene terephthalate scrap contaminated with chlorine-containing polymer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826897A (en) * 1986-12-30 1989-05-02 E. I. Dupont De Nemours And Company Process for reclaiming polyethylene terephalate scrap contaminated with chlorine-containing polymer
US4870110A (en) * 1986-12-30 1989-09-26 E. I. Dupont De Nemours And Company Process for reclaiming polyethylene terephthalate scrap contaminated with chlorine-containing polymer

Also Published As

Publication number Publication date
FR2307846B1 (en) 1977-11-18

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Legal Events

Date Code Title Description
ST Notification of lapse