GB1022051A - Improvements in or relating to polypropylene foam and process of making same - Google Patents
Improvements in or relating to polypropylene foam and process of making sameInfo
- Publication number
- GB1022051A GB1022051A GB36980/63A GB3698063A GB1022051A GB 1022051 A GB1022051 A GB 1022051A GB 36980/63 A GB36980/63 A GB 36980/63A GB 3698063 A GB3698063 A GB 3698063A GB 1022051 A GB1022051 A GB 1022051A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cross
- sulfonazide
- polypropylene
- linking
- blowing
- 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
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
- C08J9/0014—Use of organic additives
- C08J9/0033—Use of organic additives containing sulfur
-
- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/43—Compounds containing sulfur bound to nitrogen
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Polypropylene foam may be prepared by a process which comprises blending stereoregular polypropylene with a blowing agent and an azido cross-linking agent, and heating the blend at a temperature sufficient to release gas from the blowing agent whereby blowing and cross-linking of the polypropylene are effected. Chemical and solvent blowing agents may be used and exemplified are azobisformamide, trichlorotrifluoroethane, dichloromethane and pentane. The preferred azido cross-linking agents are those having the general formula R(SO2N3)x where R is an alkylene, arylene, aralkylene or alkarylene radical and x is an integer greater than 1. Many examples of azido cross-linking agents are given but 1,10-decane-bis(sulfonazide) and a chloroaliphatic hydrocarbon compound containing a plurality of sulfonazide groups are the ones preferred. Other classes of azido cross-linking agents may be those having the general formulaae <FORM:1022051/C3/1> An elastomer, e.g. an ethylene-propylene copolymer, ethylene-propylene-diene terpolymer or polyisobutylene may also be included in the blend. The foams from this process have a uniform cell structure in which at least 50% of the cells are closed and have densities of from 2 to 50 lb. per cubic foot. They may be extruded into sheets, rods and tubes, coated on to wire and cables and compression moulded to form shaped articles.ALSO:A chlorinated aliphatic poly-(sulfonazide) is prepared by passing sulphur dioxide into a solution of a commercial mixture of hydrocarbons containing 11 and 12 carbon atoms per molecule in carbon tetrachloride, exposing the mixture to ultra-violet light and simultaneously passing in chlorine, removing the solvent under vacuum and adding dropwise to the resultant chlorosulfonated hydrocarbon in acetone a sodium azide solution in water. After stirring and heating, the solvent is removed and the resulting mixture diluted with chloroform. The solution so obtained is washed with water and dried and on removing the diluent the desired product is obtained. The chlorinated aliphatic poly-(sulfonazide) may be used as a cross-linking agent in the preparation of polypropylene foams (see Division C3).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23073362A | 1962-10-15 | 1962-10-15 | |
| US23074062A | 1962-10-15 | 1962-10-15 | |
| US23069262A | 1962-10-15 | 1962-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1022051A true GB1022051A (en) | 1966-03-09 |
Family
ID=27398113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36980/63A Expired GB1022051A (en) | 1962-10-15 | 1963-09-19 | Improvements in or relating to polypropylene foam and process of making same |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT265654B (en) |
| BE (1) | BE638643A (en) |
| DE (1) | DE1544999A1 (en) |
| ES (1) | ES292369A1 (en) |
| GB (1) | GB1022051A (en) |
| NL (1) | NL299247A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3939237A (en) * | 1971-11-19 | 1976-02-17 | Asahi Dow, Ltd. | Method of making a fluid transmitting porous tube or sheet |
| DE2911719A1 (en) * | 1979-03-24 | 1980-09-25 | Freudenberg Carl Fa | METHOD FOR PRODUCING LIGHTWEIGHT FOAM FROM THERMOPLASTIC CRYSTALLINE PLASTICS |
| WO2001040374A2 (en) * | 1999-12-03 | 2001-06-07 | The Dow Chemical Company | Grafted thermoplastic compositions and fabricated articles therefrom |
| EP1295910A1 (en) * | 2001-09-25 | 2003-03-26 | Borealis GmbH | Insulating foam composition |
| CN109342489A (en) * | 2018-12-07 | 2019-02-15 | 黑龙江省能源环境研究院 | One kind is for detecting the volatile partial temperature control structure of building materials |
| CN112457518A (en) * | 2020-11-03 | 2021-03-09 | 浙江理工大学 | Laser foaming polyelectrolyte film and area pore-forming process thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016146151A1 (en) | 2015-03-13 | 2016-09-22 | Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik | Non explosive bis-sulfonyl azides |
-
1963
- 1963-09-19 GB GB36980/63A patent/GB1022051A/en not_active Expired
- 1963-10-09 DE DE19631544999 patent/DE1544999A1/en active Pending
- 1963-10-10 ES ES292369A patent/ES292369A1/en not_active Expired
- 1963-10-14 BE BE638643A patent/BE638643A/en unknown
- 1963-10-15 NL NL299247A patent/NL299247A/en unknown
- 1963-10-15 AT AT826863A patent/AT265654B/en active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3939237A (en) * | 1971-11-19 | 1976-02-17 | Asahi Dow, Ltd. | Method of making a fluid transmitting porous tube or sheet |
| DE2911719A1 (en) * | 1979-03-24 | 1980-09-25 | Freudenberg Carl Fa | METHOD FOR PRODUCING LIGHTWEIGHT FOAM FROM THERMOPLASTIC CRYSTALLINE PLASTICS |
| WO2001040374A2 (en) * | 1999-12-03 | 2001-06-07 | The Dow Chemical Company | Grafted thermoplastic compositions and fabricated articles therefrom |
| WO2001040374A3 (en) * | 1999-12-03 | 2002-02-28 | Dow Chemical Co | Grafted thermoplastic compositions and fabricated articles therefrom |
| US6395791B1 (en) | 1999-12-03 | 2002-05-28 | The Dow Chemical Company | Grafted thermoplastic compositions and fabricated articles therefrom |
| EP1295910A1 (en) * | 2001-09-25 | 2003-03-26 | Borealis GmbH | Insulating foam composition |
| WO2003029345A2 (en) * | 2001-09-25 | 2003-04-10 | Borealis Gmbh | Insulating foam composition |
| WO2003029345A3 (en) * | 2001-09-25 | 2004-02-19 | Borealis Gmbh | Insulating foam composition |
| KR100854938B1 (en) | 2001-09-25 | 2008-08-29 | 보레알리스 게엠베하 | Insulating foam composition |
| CN109342489A (en) * | 2018-12-07 | 2019-02-15 | 黑龙江省能源环境研究院 | One kind is for detecting the volatile partial temperature control structure of building materials |
| CN109342489B (en) * | 2018-12-07 | 2023-05-23 | 黑龙江省能源环境研究院 | A local temperature control structure for detecting building materials volatility |
| CN112457518A (en) * | 2020-11-03 | 2021-03-09 | 浙江理工大学 | Laser foaming polyelectrolyte film and area pore-forming process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| AT265654B (en) | 1968-10-25 |
| NL299247A (en) | 1965-08-10 |
| ES292369A1 (en) | 1963-12-01 |
| BE638643A (en) | 1964-04-14 |
| DE1544999A1 (en) | 1971-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3250731A (en) | Preparation of cellular polypropylene articles by extrusion | |
| Okano et al. | Mercerization of cellulose. II. Alkali–cellulose intermediates and a possible mercerization mechanism | |
| US3341480A (en) | Cellular polyolefin | |
| GB1022051A (en) | Improvements in or relating to polypropylene foam and process of making same | |
| US4352892A (en) | Method for the manufacture of lightweight foam materials from crystalline thermoplastic materials and the resultant products | |
| EP0086159B1 (en) | Method for improving the characteristics under heat of polyolefines | |
| US3267051A (en) | Methods for manufacturing rigid cellular products based on polyvinylchloride, and products resulting therefrom | |
| US3894928A (en) | Radiation process for the crosslinking of polyethylene with the use of acrylic and acetylenic compounds | |
| GB860327A (en) | Preparation of graft co-polymers | |
| US3904709A (en) | Process for producing thermoplastic resins | |
| ES438750A1 (en) | Process for preparing impact resistant styrene polymers | |
| US3870768A (en) | Unsaturated amides of oxybis(benzenesulfonic acid) and their use as cross-linking agents | |
| US3058957A (en) | Cross-linking vinyl ether polymers with | |
| US3287376A (en) | Chloro organo poly (sulfonazide)s | |
| US3859261A (en) | Azides | |
| US3737420A (en) | Antistatic acrylonitrile polymers | |
| GB986642A (en) | Process for the production of sulphohalogenated polymers and co-polymers of olefins | |
| US3631182A (en) | Aliphatic bis(azidoformate)s | |
| GB1082638A (en) | Process for rendering high molecular weight compounds resistant to electrostatic charge | |
| GB1602805A (en) | Polyphosphazene compositions | |
| JPH01193309A (en) | Production of halogen-containing imide resin and flame-retardant therefrom | |
| GB855714A (en) | Halogenated and/or sulphohalogenated copolymers of lower olefines and process for their manufacture | |
| US2913424A (en) | Process of simultaneously foaming and cross-linking chlorinated and sulfochlorinated polypropylene with an ammonium salt | |
| US3242231A (en) | Process for making graft polymers with polysulfone grafts | |
| US3709844A (en) | Poly(p-styrenesulfonylhydrazides) as blowing agents for plasticized poly-(vinyl chloride) |