GB2169906A - Radio opaque materials - Google Patents

Radio opaque materials Download PDF

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Publication number
GB2169906A
GB2169906A GB08501202A GB8501202A GB2169906A GB 2169906 A GB2169906 A GB 2169906A GB 08501202 A GB08501202 A GB 08501202A GB 8501202 A GB8501202 A GB 8501202A GB 2169906 A GB2169906 A GB 2169906A
Authority
GB
United Kingdom
Prior art keywords
radio opaque
coupling agent
adhesive
opaque adhesive
polymeric material
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.)
Withdrawn
Application number
GB08501202A
Other versions
GB8501202D0 (en
Inventor
Suzanne Gillian Carus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB08501202A priority Critical patent/GB2169906A/en
Publication of GB8501202D0 publication Critical patent/GB8501202D0/en
Publication of GB2169906A publication Critical patent/GB2169906A/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J201/00—Adhesives based on unspecified macromolecular compounds
    • 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
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/54—Radio-opaque materials
    • 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
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/58—Adhesives
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/54—Inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Epidemiology (AREA)
  • Wood Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

A radio opaque material such as an adhesive or coating material comprises a radio opaque filler, such as barium sulphate, a coupling agent and a polymeric material, such as a hot melt adhesive.

Description

SPECIFICATION Radio opaque materials This invention relates to radio opaque materials.
Radio opacity is normally imparted to surgical dressings and other fabric products by interweaving of fibres filled with barium sulphate. This involves the separate manufacture of highly filled radio opaque fibres which may be difficult, and their inclusion in the weaving process.
Highly filled fibres have been found to be liable to fragment during weaving or subsequent finishing operations.
According to the present invention a radio opaque adhesive substance comprises a polymeric material a radio opaque filler and a coupling agent.
The term "adhesive substance" used in this specification encompasses substances which adhere to substrates including hot melt adhesives and other substances used to bond two or more solids so that they act or can be used as a single piece. The term "adhesive" also encompasses substances which may be applied to substrates and which adhere thereto but which do not adhere to additional substrates after application, for example coating materials such as paints or inks.
Radio opaque adhesive substances in accordance with this invention have wide applications and confer considerable advantages over the previously known use of radio opaque fibres. The need for drawing into fibres is avoided. Furthermore the possibility of unravelling of the fabric is avoided. The adhesive materials may be used in non-fibrous materials, for example by application to solid objects such as surgical instruments. Details of the advantages conferred by this invention may be evident from the following description of preferred aspects of the invention.
The radio opaque filler is preferably barium sulphate although other barium compounds or lead compounds may be employed. The filler may be finely powered. Alternatively a particulate filler may be used to minimise inpediment to the adhesive properties of the product.
The coupling agent may be selected from the many which are known to those skilled in the art. Tutanium-containing coupling agents have been found to be particularly appopriate. Silanes may be used alternatively. Preferred silanes includes vinyl triethoxysilane, vinyl tris(2-methoxyethoxy) silane, ','-methacryloxypropyltrimethoxysilane, fl-(3 ,4-epoxycyclohexyl)ethyl trimethoxysilane, glycidoxypropyl trimethoxysilane, ;aminopropyl triethoxysilane and N-fl-(aminoethyl)-;'-aminopro- pyl trimethoxysilane. The silanes disclosed in U.S. patent specification No. 371537 1 or by McFarren, Sanderson & Schappell, Polymer Engineering and Science, January 1977, Volume 17, No. 1, page 46, may also be used.Chlorinated paraffins such as Chlorez 700 (Kenrich Petrochemicals Inc.) may also be used.
Preferred embodiments of the invention include one or more titanate coupling agents. Isopropyl trialkanoyl titanates are especially preferred. Isopropyl triisostearoyl titanate has been found to be particularly effective. Alternatively, isopropyl tridodecylbenzenesulphonyl titanate may be employed. Phosphate or pyrophosphate derivatives may be used, including isopropyl tri(dioctylphosphate) titanate, isopropyl tri(dioctylpyrophosphate) titanate and titanium di(dioctylpyrophosphate) ocyacetate. Other titanate coupling agents manufactured by Kenrich Petrochemicals Inc., may be used, for example as disclosed by Monte and Sugerman, Polym.-Plast. Technol. Eng., 17(1), 95-122, (1981).
Titanate coupling agents may be used in amounts of 0.5% to 5% by weight of barium sulphate, an amount of 0.4% to 1% being preferred.
According to a first preferred aspect of the present invention a hot melt adhesive comprises a polymeric material, a radio opaque material and a coupling agent.
A wide range of polymeric material may be employed. These include polymeric materials used in the manufacture of conventional hot melt adhesives, including: synthetic rubber based pressure sensitive compositions, ethylene-vinyl acetate copolymers, low or high density polyethylene or polypropylene copolyamides such as nylon 6, nylon 66 and nylon 12 or mixtures thereof, copolyesters, polymethanes, polyvinyl chloride, plasticised polyvinyl chloride, polyvinyl acetate, phenol4ormaldehyde resins and styrene-butadiene rubbers. The aforementioned compounds may be used in admixture with tackifiers and/or extenders.
Radio opaque hot melt adhesives may be used in manufacture of surgical dressings in place of conventional hot melt adhesives used to secure the coverstock. The adhesives may also be used in manufacture of adhesive tape for assembly of dressings, making of otherwise radio-transparent surgical instruments and the like.
Adhesives in accordance with the first preferred aspect of this invention may find application in fastening of a wide range of articles, facilitating X-ray inspection of the joints, for example in concealed or inaccessible locations. Fastenings in construction of aircraft or other fabrications from X-ray transparent metals, may be inspected in this way.
According to a second preferred aspect of the present invention, a coating material comprises a polymeric material, a radio opaque filler and a coupling agent.
The coating material may, for example, comprise a paint, ink or other material adapted to be printed onto a substrate.
The coating material may be applied to a small area of an article such as a prosthesis, surgical instrument, surgical dressing or other absorbent dressing. Application to a prosthesis may facilitate inspection of the location thereof to check whether any movement has occured in situ.
The polymeric material may have a wide range of compositions. Acrylic polymers have been found to be particularly efficacious.
Coating compositions in accordance with this invention have a wide range of non-surgical applications. these include application to sheets for use as contrast media for X-ray photography, for example in stress analysis. X-ray opaque labels which might be otherwise unreadable may be applied to property which is liable to be stolen. Similarly X-ray readable markings may be applied to explosives.

Claims (13)

1. A radio opaque adhesive substance comprising a polymeric material a radio opaque filler and a coupling agent.
2. A radio opaque adhesive as claimed in claim 1, wherein the filler is barium sulphate.
3. A radio opaque adhesive as claimed in claim 2, wherein the coupling agent is an isopropyl trialkanoyl titanate.
4. A radio opaque adhesive as claimed in claim 3, wherein the coupling agent is isopropyl triisostearoyl titanate.
5. A radio opaque adhesive as claimed in claim 3 or 4, including 0.5% to 5% w/w of the coupling agent by weight of barium sulphate.
6. A radio opaque adhesive as claimed in claims 3 or 4, including 0.4% to 1% w/w of the coupling agent by weight of barium sulphate.
7. A hot melt radio opaque adhesive as claimed in any preceding claim.
8. A radio opaque adhesive as claimed in claim 7, wherein the polymeric material is selected from: synthetic rubber based pressure sensitive compositions, ethylene-vinyl acetate copolymers, low or high density polyethylene or polypropylene, copolyamides, copolyesters, polymethanes, polyvinyl chloride, polyvinyl acetate, phenol-formaldehyde resins and styrene-butadiene rubbers.
9. A surgical dressing incorporating an adhesive as claimed in claim 7 or 8.
10. A coating material comprising a polymeric material, a radio opaque filler and a coupling agent.
11. A coating material as claimed in claim 10, wherein the polymeric material is an acrylic polymer.
12. A radio opaque adhesive substantially as hereinbefore described.
13. A coating material substantially as hereinbefore described.
GB08501202A 1985-01-17 1985-01-17 Radio opaque materials Withdrawn GB2169906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08501202A GB2169906A (en) 1985-01-17 1985-01-17 Radio opaque materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08501202A GB2169906A (en) 1985-01-17 1985-01-17 Radio opaque materials

Publications (2)

Publication Number Publication Date
GB8501202D0 GB8501202D0 (en) 1985-02-20
GB2169906A true GB2169906A (en) 1986-07-23

Family

ID=10573003

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08501202A Withdrawn GB2169906A (en) 1985-01-17 1985-01-17 Radio opaque materials

Country Status (1)

Country Link
GB (1) GB2169906A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335159A1 (en) * 1988-03-26 1989-10-04 Bayer Ag Thermoplastic moulding compositions
WO1996001096A2 (en) * 1994-07-04 1996-01-18 Smith & Nephew Plc Dressing
FR2818893A1 (en) * 2000-12-28 2002-07-05 Soveta S R L MESH FOR SURGICAL USE AT LEAST PARTIALLY RADIOOPAQUE
US6723095B2 (en) * 2001-12-28 2004-04-20 Hemodynamics, Inc. Method of spinal fixation using adhesive media
WO2006041607A1 (en) * 2004-09-15 2006-04-20 Boston Scientific Limited Elastomeric radiopaque adhesive composite and prosthesis
US8039101B2 (en) * 2007-01-19 2011-10-18 Societe de Recherches Techniques Dentaires-R.T.D. Radio-opaque dental prosthetic member
CN105624821A (en) * 2016-04-08 2016-06-01 上海全宇生物科技遂平有限公司 Barium sulfate/polyvinyl alcohol composite fiber and preparation method thereof and non-woven fabric
WO2021048660A1 (en) * 2019-09-10 2021-03-18 3M Innovative Properties Company Medical articles with radio opaque patterns

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112266756A (en) * 2020-11-03 2021-01-26 杭州三联油墨化学有限公司 Hot melt adhesive for radiographic inspection

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971754A (en) * 1973-12-10 1976-07-27 Pennwalt Corporation X-ray opaque, enamel-matching dental filling composition
GB1488403A (en) * 1974-01-23 1977-10-12 Perdent Gmbh Dental material
GB2064550A (en) * 1979-12-12 1981-06-17 Colgate Palmolive Co Radio-opaque dental restorative compositions
GB2086398A (en) * 1980-10-21 1982-05-12 Kulzer & Co Gmbh Dental material having a plastics material base
US4492777A (en) * 1982-11-26 1985-01-08 Johnson & Johnson Dental Products Co. Heat treated barium or strontium glass
US4500658A (en) * 1983-06-06 1985-02-19 Austenal International, Inc. Radiopaque acrylic resin

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971754A (en) * 1973-12-10 1976-07-27 Pennwalt Corporation X-ray opaque, enamel-matching dental filling composition
GB1477160A (en) * 1973-12-10 1977-06-22 Pennwalt Corp Dental filling compositions
GB1488403A (en) * 1974-01-23 1977-10-12 Perdent Gmbh Dental material
GB2064550A (en) * 1979-12-12 1981-06-17 Colgate Palmolive Co Radio-opaque dental restorative compositions
GB2086398A (en) * 1980-10-21 1982-05-12 Kulzer & Co Gmbh Dental material having a plastics material base
US4492777A (en) * 1982-11-26 1985-01-08 Johnson & Johnson Dental Products Co. Heat treated barium or strontium glass
US4500658A (en) * 1983-06-06 1985-02-19 Austenal International, Inc. Radiopaque acrylic resin

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335159A1 (en) * 1988-03-26 1989-10-04 Bayer Ag Thermoplastic moulding compositions
WO1996001096A2 (en) * 1994-07-04 1996-01-18 Smith & Nephew Plc Dressing
WO1996001096A3 (en) * 1994-07-04 1996-06-06 Smith & Nephew Dressing
FR2818893A1 (en) * 2000-12-28 2002-07-05 Soveta S R L MESH FOR SURGICAL USE AT LEAST PARTIALLY RADIOOPAQUE
US6723095B2 (en) * 2001-12-28 2004-04-20 Hemodynamics, Inc. Method of spinal fixation using adhesive media
US6979333B2 (en) 2001-12-28 2005-12-27 Hemodynamics, Inc. Method of spinal fixation using adhesive media
WO2006041607A1 (en) * 2004-09-15 2006-04-20 Boston Scientific Limited Elastomeric radiopaque adhesive composite and prosthesis
JP2008513118A (en) * 2004-09-15 2008-05-01 ボストン サイエンティフィック リミテッド Elastic radiopaque adhesive composite and prosthesis
US8039101B2 (en) * 2007-01-19 2011-10-18 Societe de Recherches Techniques Dentaires-R.T.D. Radio-opaque dental prosthetic member
CN105624821A (en) * 2016-04-08 2016-06-01 上海全宇生物科技遂平有限公司 Barium sulfate/polyvinyl alcohol composite fiber and preparation method thereof and non-woven fabric
CN105624821B (en) * 2016-04-08 2017-08-25 上海全宇生物科技遂平有限公司 A kind of barium sulfate/polyvinyl alcohol composite fiber and preparation method thereof, non-woven cloth
WO2021048660A1 (en) * 2019-09-10 2021-03-18 3M Innovative Properties Company Medical articles with radio opaque patterns

Also Published As

Publication number Publication date
GB8501202D0 (en) 1985-02-20

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)