FR2191985A1 - Tear-resistant plastic sheet - having surface ribs produced by calendering to inhibit tear resistance - Google Patents
Tear-resistant plastic sheet - having surface ribs produced by calendering to inhibit tear resistanceInfo
- Publication number
- FR2191985A1 FR2191985A1 FR7225506A FR7225506A FR2191985A1 FR 2191985 A1 FR2191985 A1 FR 2191985A1 FR 7225506 A FR7225506 A FR 7225506A FR 7225506 A FR7225506 A FR 7225506A FR 2191985 A1 FR2191985 A1 FR 2191985A1
- Authority
- FR
- France
- Prior art keywords
- tear
- calendering
- plastic sheet
- resistant plastic
- inhibit
- 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.)
- Pending
Links
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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The calendered thermoplastic sheet is produced when one or both of the calender rolls used have surface grooves or pockets to produce a complementary pattern of ribs or spots of increased thickness. The pattern is pref. superimposed onto a freshly extruded feedstock sheet as an intersecting network of ribs with an annular rib at certain intersections to provide a tear resistant collar for support pins etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7225506A FR2191985A1 (en) | 1972-07-13 | 1972-07-13 | Tear-resistant plastic sheet - having surface ribs produced by calendering to inhibit tear resistance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7225506A FR2191985A1 (en) | 1972-07-13 | 1972-07-13 | Tear-resistant plastic sheet - having surface ribs produced by calendering to inhibit tear resistance |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2191985A1 true FR2191985A1 (en) | 1974-02-08 |
Family
ID=9101835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7225506A Pending FR2191985A1 (en) | 1972-07-13 | 1972-07-13 | Tear-resistant plastic sheet - having surface ribs produced by calendering to inhibit tear resistance |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2191985A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0586962A1 (en) * | 1992-09-01 | 1994-03-16 | GOTTLIEB BINDER GMBH & Co. | Hooks fastener element for a mechanical fastening system and process of manufacture thereof |
-
1972
- 1972-07-13 FR FR7225506A patent/FR2191985A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0586962A1 (en) * | 1992-09-01 | 1994-03-16 | GOTTLIEB BINDER GMBH & Co. | Hooks fastener element for a mechanical fastening system and process of manufacture thereof |
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