CA2093058A1 - Absorbable dusting powder derived from reduced-protein modified starch - Google Patents
Absorbable dusting powder derived from reduced-protein modified starchInfo
- Publication number
- CA2093058A1 CA2093058A1 CA002093058A CA2093058A CA2093058A1 CA 2093058 A1 CA2093058 A1 CA 2093058A1 CA 002093058 A CA002093058 A CA 002093058A CA 2093058 A CA2093058 A CA 2093058A CA 2093058 A1 CA2093058 A1 CA 2093058A1
- Authority
- CA
- Canada
- Prior art keywords
- modified starch
- reduced
- dusting powder
- protein modified
- powder derived
- 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.)
- Granted
Links
- 238000010410 dusting Methods 0.000 title abstract 3
- 239000000843 powder Substances 0.000 title abstract 3
- 229920000881 Modified starch Polymers 0.000 title abstract 2
- 239000004368 Modified starch Substances 0.000 title abstract 2
- 235000019426 modified starch Nutrition 0.000 title abstract 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 abstract 2
- 229920002472 Starch Polymers 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 102000004169 proteins and genes Human genes 0.000 abstract 1
- 108090000623 proteins and genes Proteins 0.000 abstract 1
- 235000019698 starch Nutrition 0.000 abstract 1
- 239000008107 starch Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/003—Crosslinking of starch
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B42/00—Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof
- A61B42/10—Surgical gloves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/042—Polysaccharides
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Absorbable dusting powders suitable for medical, consumer and industrial applications such as lubricating gloves and medical apparatus are prepared by treating starch with a hypochlorite to remove protein and oxidize some of the hydroxyl groups. The modified starch dusting powders are free flowing and are characterized by a protein content of less than about 0.15%
by weight and hydroxyl groups oxidized to a level of from about 0.03 to about 0.5% by weight. Protein content can be reduced further by washing with water.
by weight and hydroxyl groups oxidized to a level of from about 0.03 to about 0.5% by weight. Protein content can be reduced further by washing with water.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/862,774 | 1992-04-03 | ||
| US07/862,774 US5346892A (en) | 1990-12-05 | 1992-04-03 | Absorbable dusting powder derived from reduced-protein modified starch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2093058A1 true CA2093058A1 (en) | 1993-10-04 |
| CA2093058C CA2093058C (en) | 2002-09-17 |
Family
ID=25339304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002093058A Expired - Lifetime CA2093058C (en) | 1992-04-03 | 1993-03-31 | Absorbable dusting powder derived from reduced-protein modified starch |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH0723401B2 (en) |
| KR (1) | KR100254363B1 (en) |
| BR (1) | BR9301423A (en) |
| CA (1) | CA2093058C (en) |
| MY (1) | MY133276A (en) |
-
1993
- 1993-03-31 CA CA002093058A patent/CA2093058C/en not_active Expired - Lifetime
- 1993-04-02 BR BR9301423A patent/BR9301423A/en not_active Application Discontinuation
- 1993-04-02 MY MYPI93000599A patent/MY133276A/en unknown
- 1993-04-02 KR KR1019930005680A patent/KR100254363B1/en not_active IP Right Cessation
- 1993-04-02 JP JP5076988A patent/JPH0723401B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| BR9301423A (en) | 1993-10-05 |
| CA2093058C (en) | 2002-09-17 |
| JPH0723401B2 (en) | 1995-03-15 |
| MY133276A (en) | 2007-10-31 |
| KR100254363B1 (en) | 2000-05-01 |
| JPH06239901A (en) | 1994-08-30 |
| KR930021159A (en) | 1993-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130402 |
|
| MKEC | Expiry (correction) |
Effective date: 20131009 |