DE2862005D1 - Particulate polyurethane polymers in the form of micro-bits, a process for their preparation and aqueous slurries containing them - Google Patents

Particulate polyurethane polymers in the form of micro-bits, a process for their preparation and aqueous slurries containing them

Info

Publication number
DE2862005D1
DE2862005D1 DE7878300390T DE2862005T DE2862005D1 DE 2862005 D1 DE2862005 D1 DE 2862005D1 DE 7878300390 T DE7878300390 T DE 7878300390T DE 2862005 T DE2862005 T DE 2862005T DE 2862005 D1 DE2862005 D1 DE 2862005D1
Authority
DE
Germany
Prior art keywords
bits
micro
preparation
polyurethane polymers
aqueous slurries
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.)
Expired
Application number
DE7878300390T
Other languages
English (en)
Inventor
Max Klein
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25264934&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE2862005(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US05/833,643 external-priority patent/US4200679A/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE2862005D1 publication Critical patent/DE2862005D1/de
Expired 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B17/0404—Disintegrating plastics, e.g. by milling to powder
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/57—Polyureas; Polyurethanes
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paper (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
DE7878300390T 1977-09-15 1978-09-14 Particulate polyurethane polymers in the form of micro-bits, a process for their preparation and aqueous slurries containing them Expired DE2862005D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/833,643 US4200679A (en) 1973-03-16 1977-09-15 Micro-bits of expanded flexible polyurethanes

Publications (1)

Publication Number Publication Date
DE2862005D1 true DE2862005D1 (en) 1982-10-21

Family

ID=25264934

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7878300390T Expired DE2862005D1 (en) 1977-09-15 1978-09-14 Particulate polyurethane polymers in the form of micro-bits, a process for their preparation and aqueous slurries containing them

Country Status (4)

Country Link
EP (1) EP0001679B2 (de)
JP (1) JPS5495670A (de)
CA (1) CA1106100A (de)
DE (1) DE2862005D1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951617C2 (de) * 1979-12-21 1985-08-14 Wilhelm Prof. Dr.-Ing. 5100 Aachen Schütz Verfahren und Anlage zur Aufbereitung von Polyurethan
EP1213113A1 (de) * 2000-12-06 2002-06-12 Ensci, Inc. Verfahren zum Reduzieren der Teilchengrösse von porösen Polymeren und daraus hergestellte Produkte
EP1403535B1 (de) 2001-05-29 2007-05-09 OSG Corporation Schraubenfestziehkonstruktion, schraubenglied und schraubenfestziehwerkzeug

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB922306A (de) *
GB1058932A (en) * 1962-08-04 1967-02-15 Bayer Ag Paper-like elements
GB1194492A (en) * 1968-04-11 1970-06-10 Strickman Foundation Robert L Filter Material
IL35463A0 (en) * 1969-10-23 1970-12-24 Strickman Ind Inc Collection of oils

Also Published As

Publication number Publication date
JPS6247212B2 (de) 1987-10-07
EP0001679B2 (de) 1986-11-05
CA1106100A (en) 1981-07-28
JPS5495670A (en) 1979-07-28
EP0001679B1 (de) 1982-08-25
EP0001679A1 (de) 1979-05-02

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Legal Events

Date Code Title Description
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee