US20010000181A1 - Barrier reducing permeation of hydrocarbons - Google Patents
Barrier reducing permeation of hydrocarbons Download PDFInfo
- Publication number
- US20010000181A1 US20010000181A1 US09/725,076 US72507600A US2001000181A1 US 20010000181 A1 US20010000181 A1 US 20010000181A1 US 72507600 A US72507600 A US 72507600A US 2001000181 A1 US2001000181 A1 US 2001000181A1
- Authority
- US
- United States
- Prior art keywords
- thermoplastic
- additive
- lbs
- drum
- comprised
- 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.)
- Abandoned
Links
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 7
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 7
- 230000004888 barrier function Effects 0.000 title description 2
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 30
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 30
- 239000000654 additive Substances 0.000 claims abstract description 22
- 230000000996 additive effect Effects 0.000 claims abstract description 21
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims abstract description 12
- 229940063655 aluminum stearate Drugs 0.000 claims abstract description 12
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 10
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 14
- 229920006178 high molecular weight high density polyethylene Polymers 0.000 claims description 9
- 238000002156 mixing Methods 0.000 description 6
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000383 hazardous chemical Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/16—Homopolymers or copolymers or vinylidene fluoride
Definitions
- Polyethylene is a favored material used in constructing containers. It is cheaply produced as molded or extruded. However, polyethylene has serious drawbacks. When certain fluids such as hydrocarbon based materials are packaged in polyethylene containers, they have a tendency to seep through the container wall. This is due to the permeable nature of polyethylene.
- thermoplastic additive which when blended with a thermoplastic serves as a barrier to the permeation of fluids, and in particular, hydrocarbon based materials.
- thermoplastic additive which can be formed into a liner for containers of other materials, such as metal and paper products, which provides resistance to fluid permeation.
- the present invention is a thermoplastic additive which is added to thermoplastics, particularly, polyethylene.
- the additive is comprised of a carrier thermoplastic, polyvinylidine fluoride, and aluminum stearate as a tie agent, binding the polyvinylidine fluoride and the carrier thermoplastic.
- blend into a liner suitable for lining metal drums and containers of other materials, thereby serving as extra measure of protection against permeation.
- Aluminum stearate is used as an agent capable of gelling or thickening aliphatic and aromatic hydrocarbons.
- its presence as an additive to thermoplastics or to thermoplastic liners reduces permeation through the container walls. If aliphatic or aromatic hydrocarbons penetrate the interior container wall or interior liner, the presence of aluminum stearate would cause a localized thickening, thereby preventing permeation.
- the additive is prepared by mixing polyvinylidine fluoride (PVDF) and aluminum stearate with the carrier thermoplastic.
- PVDF polyvinylidine fluoride
- the PVDF can be in either powderized or pelletized form.
- the thermoplastic is high molecular weight high density polyethylene (HMW-HDPE).
- HMW-HDPE high molecular weight high density polyethylene
- the components of the blend were mixed in the following ratio: HMW-HDPE 52 lbs. PVDF 48 lbs. Aluminum stearate 56 grms/cwt.
- the blend Prior to mixing, the blend is covered. After mixing of the additive, it is suitable for a subsequent blending with a resin of the carrier.
- the subsequent blending creates a thermoplastic composite that resists and reduces permeation through its walls. It is preferred that after the subsequent mixing with the carrier thermoplastic, the additive comprise 3 to 6% of the total composition of the subsequent composite.
- the blend may also be used as a thermoplastic liner for containers of other materials.
- the liner is applied to the containers by means known by those skilled in the art.
- the drums were filled with xylene and then stored for a period of a year. Data reflecting the percentage of fluid permeating through the drum was compiled on a intermittent basis.
- Drum #1 was a control drum possessing no permeation resistant additives.
- Drum #2 possessed a 3% permeation resistant additive as disclosed in the invention.
- Drum #3 possessed a 6% permeation resistant additive as disclosed in the invention. 1 year 30 day/50° C. 12 weeks/50° C. at ambient Drum #1 0.7% loss 2.08% loss 6.0% loss 3%
- Drum #2 0.4% loss 1.1% loss 4.7% loss 6%
- Drum #3 0.19% loss 0.58% loss 4.6% loss
- the drums containing the additive exhibit a resistance to permeation.
- the additive brings the drums into compliance with Department of Transportation regulations, which set a maximum of 0.5% loss at 50° C. for a thirty day period for hazardous materials, and 2% loss at 50° C. for a thirty day period at for non-hazardous materials.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/725,076 US20010000181A1 (en) | 1990-05-31 | 2000-11-29 | Barrier reducing permeation of hydrocarbons |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53112190A | 1990-05-31 | 1990-05-31 | |
| US94584692A | 1992-09-16 | 1992-09-16 | |
| US30619894A | 1994-09-14 | 1994-09-14 | |
| US09/725,076 US20010000181A1 (en) | 1990-05-31 | 2000-11-29 | Barrier reducing permeation of hydrocarbons |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US30619894A Continuation | 1990-05-31 | 1994-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20010000181A1 true US20010000181A1 (en) | 2001-04-05 |
Family
ID=24116326
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/725,153 Expired - Fee Related US6630529B2 (en) | 1990-05-31 | 2000-11-29 | Barrier reducing permeation of hydrocarbons |
| US09/725,076 Abandoned US20010000181A1 (en) | 1990-05-31 | 2000-11-29 | Barrier reducing permeation of hydrocarbons |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/725,153 Expired - Fee Related US6630529B2 (en) | 1990-05-31 | 2000-11-29 | Barrier reducing permeation of hydrocarbons |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US6630529B2 (sv) |
| SE (1) | SE506281C2 (sv) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE554924T1 (de) * | 2002-11-21 | 2012-05-15 | Total Petrochemicals Res Feluy | Mehrschichtiges rotationsformen |
| US20050109783A1 (en) * | 2003-11-21 | 2005-05-26 | Smith Vance M. | Closure assembly for a storage container |
| US11440399B2 (en) | 2019-03-22 | 2022-09-13 | Agility Fuel Systems Llc | Fuel system mountable to a vehicle frame |
| US20200347992A1 (en) | 2019-05-02 | 2020-11-05 | Agility Fuel Systems Llc | Polymeric liner based gas cylinder with reduced permeability |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423188A (en) * | 1980-07-28 | 1983-12-27 | Occidental Chemical Corporation | Vinyl halide polymer blends of enhanced impact resistance |
| JPS61174270A (ja) * | 1985-01-29 | 1986-08-05 | Kyowa Chem Ind Co Ltd | 耐発錆性ないし耐着色性賦与剤 |
-
1990
- 1990-12-21 SE SE9004089A patent/SE506281C2/sv not_active IP Right Cessation
-
2000
- 2000-11-29 US US09/725,153 patent/US6630529B2/en not_active Expired - Fee Related
- 2000-11-29 US US09/725,076 patent/US20010000181A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| SE506281C2 (sv) | 1997-12-01 |
| SE9004089L (sv) | 1991-12-01 |
| SE9004089D0 (sv) | 1990-12-21 |
| US6630529B2 (en) | 2003-10-07 |
| US20010000037A1 (en) | 2001-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |