DE3309855C2 - - Google Patents

Info

Publication number
DE3309855C2
DE3309855C2 DE19833309855 DE3309855A DE3309855C2 DE 3309855 C2 DE3309855 C2 DE 3309855C2 DE 19833309855 DE19833309855 DE 19833309855 DE 3309855 A DE3309855 A DE 3309855A DE 3309855 C2 DE3309855 C2 DE 3309855C2
Authority
DE
Germany
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
DE19833309855
Other languages
German (de)
Other versions
DE3309855A1 (de
Inventor
Ferdinand Dr. 8014 Neubiberg De Quella
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.)
QUELLA, FERDINAND, DR., 8014 NEUBIBERG, DE
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 DE19833309855 priority Critical patent/DE3309855A1/de
Publication of DE3309855A1 publication Critical patent/DE3309855A1/de
Application granted granted Critical
Publication of DE3309855C2 publication Critical patent/DE3309855C2/de
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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1669—Cellular material
    • B01D39/1676—Cellular material of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/202—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising elimination of a solid or a liquid ingredient
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/14—Filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
DE19833309855 1983-03-18 1983-03-18 Offenzelliger kunststoffschaum Granted DE3309855A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833309855 DE3309855A1 (de) 1983-03-18 1983-03-18 Offenzelliger kunststoffschaum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833309855 DE3309855A1 (de) 1983-03-18 1983-03-18 Offenzelliger kunststoffschaum

Publications (2)

Publication Number Publication Date
DE3309855A1 DE3309855A1 (de) 1984-09-20
DE3309855C2 true DE3309855C2 (fr) 1987-03-12

Family

ID=6193932

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833309855 Granted DE3309855A1 (de) 1983-03-18 1983-03-18 Offenzelliger kunststoffschaum

Country Status (1)

Country Link
DE (1) DE3309855A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033291A1 (de) * 1990-10-19 1992-04-23 Draenert Klaus Werkstoff und verfahren zu seiner herstellung
US5993716A (en) * 1990-10-19 1999-11-30 Draenert; Klaus Material and process for its preparation
US5746200A (en) * 1990-10-19 1998-05-05 Draenert; Klaus Trabecula nasal filter having both macropores and micropores
CH683263A5 (de) * 1992-02-25 1994-02-15 Weidmann H Ag Offenporiger dimensionsstabiler Körper.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6408338A (fr) * 1963-07-26 1965-01-27
GB1051320A (en) * 1964-01-13 1966-12-14 W.R. Grace & Co. Micro-porous polyethylene and a process for the manufacture thereof
GB1122804A (en) * 1964-08-13 1968-08-07 Porous Plastics Ltd Improvements relating to the production of microporous polymeric plastics materials
CA954263A (en) * 1969-02-25 1974-09-10 Sybron Corporation Semi-permeable membranes and method of production
GB1412983A (en) * 1971-11-30 1975-11-05 Debell & Richardson Method of producing porous plastic materials

Also Published As

Publication number Publication date
DE3309855A1 (de) 1984-09-20

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: QUELLA, FERDINAND, DR., 8014 NEUBIBERG, DE

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee