NL169561C - METHOD FOR MANUFACTURING ARTICLES OF POLYPROPENE. - Google Patents

METHOD FOR MANUFACTURING ARTICLES OF POLYPROPENE.

Info

Publication number: NL169561C
Authority: NL; Netherlands
Prior art keywords: polypropene; manufacturing articles; articles; manufacturing
Prior art date: 1970-12-04

Application number

NLAANVRAGE7116626,A

Other languages

Dutch (nl)

Other versions

NL169561B (en

NL7116626A (en

Original Assignee

Shell Int Research

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.)

1970-12-04

Filing date

1971-12-03

Publication date

1984-04-16

1971-12-03 Application filed by Shell Int Research filed Critical Shell Int Research

1972-06-06 Publication of NL7116626A publication Critical patent/NL7116626A/xx

1982-03-01 Publication of NL169561B publication Critical patent/NL169561B/en

1984-04-16 Application granted granted Critical

1984-04-16 Publication of NL169561C publication Critical patent/NL169561C/en

Classifications

- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)

NLAANVRAGE7116626,A 1970-12-04 1971-12-03 METHOD FOR MANUFACTURING ARTICLES OF POLYPROPENE. NL169561C (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US9512370A	1970-12-04	1970-12-04
US9508670A	1970-12-04	1970-12-04
CH417472A CH538922A (en)	1970-12-04	1972-03-21	Thin walled dish-shaped articles - punched out of thin polyolefin she

Publications (3)

Publication Number	Publication Date
NL7116626A NL7116626A (en)	1972-06-06
NL169561B NL169561B (en)	1982-03-01
NL169561C true NL169561C (en)	1984-04-16

Family

ID=27174740

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7116626,A NL169561C (en)	1970-12-04	1971-12-03	METHOD FOR MANUFACTURING ARTICLES OF POLYPROPENE.

Country Status (2)

Country	Link
CH (1)	CH538922A (en)
NL (1)	NL169561C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4118454A (en) *	1975-09-02	1978-10-03	Sumitomo Bakelite Company Limited	Method for producing transparent plastic molded articles
ES2259890B1 (en) *	2004-11-22	2007-10-01	Nina Cristal, S.L.	PROCEDURE FOR THE CONFORMATION OF LAVABOS.

1971
- 1971-12-03 NL NLAANVRAGE7116626,A patent/NL169561C/en not_active IP Right Cessation
1972
- 1972-03-21 CH CH417472A patent/CH538922A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
CH538922A (en)	1973-07-15
NL169561B (en)	1982-03-01
NL7116626A (en)	1972-06-06

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Legal Events

Date	Code	Title	Description
1982-02-16	DNT	Communications of changes of names of applicants whose applications have been laid open to public inspection	Free format text: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ
1982-08-02	R1B	Notice of opposition during period of laying open
1984-04-16	NP1	Not automatically granted patents
1991-08-16	V1	Lapsed because of non-payment of the annual fee