DE3013848A1 - Dentistry grinding disc or tip prodn. - by cold-mixing pref. unsatd. polyester binder and abrasive, forming and hardening - Google Patents

Dentistry grinding disc or tip prodn. - by cold-mixing pref. unsatd. polyester binder and abrasive, forming and hardening

Info

Publication number
DE3013848A1
DE3013848A1 DE19803013848 DE3013848A DE3013848A1 DE 3013848 A1 DE3013848 A1 DE 3013848A1 DE 19803013848 DE19803013848 DE 19803013848 DE 3013848 A DE3013848 A DE 3013848A DE 3013848 A1 DE3013848 A1 DE 3013848A1
Authority
DE
Germany
Prior art keywords
cold
abrasive
binder
hardening
prodn
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Withdrawn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
DE19803013848
Other languages
German (de)
Inventor
Antrag Auf Nichtnennung
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.)
DENTICON DENTAL GmbH
Original Assignee
DENTICON DENTAL GmbH
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 DENTICON DENTAL GmbH filed Critical DENTICON DENTAL GmbH
Priority to DE19803013848 priority Critical patent/DE3013848A1/en
Publication of DE3013848A1 publication Critical patent/DE3013848A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28Resins or natural or synthetic macromolecular compounds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00Dental tools or instruments
    • A61C3/06Tooth grinding or polishing discs; Holders therefor

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Prodn. of grinding, - cutting, separating and polishing discs or tips comprises cold-mixing a binder and an abrasive, forming and hardening. Pref binders are polyesters, esp. unsaturated polyesters. The discs or tips are used esp. in dentistry, e.g. for working prostheses. The compsns. can be cold-hardened. Polyester binders are easily handled, cold-formed, cheap and cause no smell on laboratory working.

Description

Verfahren zum Herstellen von Schleif-, Trenn-,Separier- Process for the production of grinding, cutting, separating

und Polierscheiben, -spitzen od. dgl. and polishing discs, tips or the like.

Die Erfindung betrifft ein Verfahren zum Herstellen von Schleif-, Trenn-, Separier- und Polierscheiben, -spitzen od. dgl., insbesondere für medizinische Zwecke, aus mit einem Bindemittel versehenen Schleifmittel.The invention relates to a method for producing grinding, Separating, separating and polishing disks, tips or the like, in particular for medical applications Purposes, from abrasives provided with a binder.

Scheiben oder Spitzen dieser Art werden vor allem in zahnärztlichen Praxen bzw. Laboratorien verwandt und dienen der Bearbeitung von Prothesen od. dgl. Sie sind bei ihrer Benutzung erheblichen Beanspruchungen ausgesetzt und müssen deshalb spezielle chemische, physikalische und mechanische Eigenschaften aufweisen.Discs or tips of this type are mainly used in dental applications Practices or laboratories related and are used to process prostheses or the like. They are exposed to considerable stress during their use and must therefore have special chemical, physical and mechanical properties.

Bislang erfolgt ihre Herstellung in der Regel aus Phenolharzen oder Kautschuksbeschichtet oder gemischt mit Schleifmittel, wie z. B. Korund, wobei die Masse einer bestimmten Wärmebehandlung unterzogen wird.So far, they have usually been made from phenolic resins or Rubber coated or mixed with abrasives such as B. corundum, the Mass is subjected to a certain heat treatment.

Bekannt sind auch beschichtete Diamantscheiben, welche aber sehr teuer sind und deshalb nur für bestimmte Arbeiten verwendet werden.Coated diamond disks are also known, but they are very expensive and are therefore only used for certain work.

Diese bekannten Scheiben bzw. Spitzen haben zum einen den Nachteil, daß ihre Herstellung durch die Wärmebehandlung relativ viel Zeit in Anspruch nimmt, da das Aushärten abgewartet werden muß, bevor die Scheibe weiterbehandelt werden kann. Weiterhin erzeugen sie beim Bearbeitungsvorgang in den Laboratorien eine Geruchsbelästigung, welche ihre Anwendung aus arbeitsplatzhygienischen Gründen als ungünstig erscheinen läßt.On the one hand, these known discs or tips have the disadvantage that their production takes a relatively long time due to the heat treatment, since the hardening must be awaited before the pane can be treated further can. Furthermore, they produce an odor nuisance during the processing process in the laboratories, which appear to be unfavorable to use for reasons of workplace hygiene leaves.

In der Praxis hat sich weiterhin gezeigt, daß die so hergestellten Scheiben in vielen Fällen nicht den an sie gestellten mechanischen Anforderungen gerecht werden.In practice it has also been shown that the so produced In many cases, disks do not meet the mechanical requirements placed on them satisfy.

Der Erfinder hat sich zum Ziel gesetzt ein Verfahren zu entwickeln, durch welches die vorgenannten Nachteile vermieden und Scheiben bzw. Spitzen vor allem kostengünstig herzustellen sind.The inventor has set himself the goal of developing a process by which the aforementioned disadvantages avoided and discs or tips before all are inexpensive to manufacture.

Diese Aufgabe wird dadurch gelöst, daß das Bindemittel zusammen mit dem Schleifmittel kalt angemischt, geformt und gehärtet wird.This object is achieved in that the binder together with cold mixed with the abrasive, shaped and hardened.

Als Bindemittel für dieses Verfahren bietet sich vor allem Polyester bzw. Polyesterharze an. Diese haben den Vorteil, daß sie einfach zu handhaben, kalt zu verformen und sehr kostengünstig sind.Polyester is the most suitable binder for this process or polyester resins. These have the advantage that they are easy to handle when cold deform and are very inexpensive.

Die Erfindung umfaßt auch die Verwendung von ungesättigten Polyesterharzen, welche vor allem als Gießharze Anwendung finden können.The invention also includes the use of unsaturated polyester resins, which can be used primarily as casting resins.

Die Polyester haben zudem den erheblichen Vorteil, daß sie kaum geruchsbelästigend wirken und so den Laborbetrieb wenig stören.The polyesters also have the considerable advantage that they hardly have any offensive odors act and thus disrupt laboratory operations little.

Diesem Bindemittel wird in der Regel ein Beschleuniger oder Härter zugesetzt, um den Aushärtungszeitraum zu verkürzen. Hierfür kommt z. B. der unter dem Industrienamen BP 50 bekannte Beschleuniger in Frage. Auch dieser wird dem Bindemittel kalt beigegeben.This binder is usually an accelerator or hardener added to shorten the curing period. For this comes z. B. the under accelerator known from the industry name BP 50 in question. This too becomes the binder added cold.

Besonders günstig als Schleifmittel für dieses Verfahren haben sich Aluminiumoxid bzw. Edelkorund und Siliziumkarbid erwiesen. Sie beweisen in der Praxis in Verbindung mit dem Polyester sehr gute mechanische Eigenschaften.Particularly beneficial as abrasives for this process have Aluminum oxide or high-grade corundum and silicon carbide have been proven. They prove it in practice Very good mechanical properties in connection with the polyester.

Allerdings umfaßt der Erfindungsgedanke auch den Zusatz weiterer in der Zahntechnik üblicher Schleifmittel.However, the concept of the invention also includes the addition of further in abrasives commonly used in dental technology.

Selbstverständlich ist es auch möglich den Härtevorgang durch Wärmezugabe zu beschleunigen, jedoch genügt nach dem vorliegenden Verfahren ein Kaltaushärtenlassen.It goes without saying that the hardening process can also be carried out by adding heat to accelerate, however, a cold hardening is sufficient according to the present method.

Claims (6)

PATENTANSPRÜCHE I Q)i. Verfahren zum Herstellen von Schleif-, Trenn-, Separier-und Polierscheiben, -spitzen od. dgl., insbesondere für medizinische Zwecke, aus mit einem Bindemittel versehenen Schleifmittel, dadurch gekennzeichnet, daß das Bindemittel zusammen mit dem Schleifmittel kalt angemischt, geformt und gehärtet wird. PATENT CLAIMS I Q) i. Process for the production of grinding, cutting, Separating and polishing disks, tips or the like, in particular for medical purposes, of abrasives provided with a binding agent, characterized in that the binder and the abrasive are mixed cold, shaped and hardened will. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Bindemittel ein Polyester bzw. Poyesterharz verwendet wird. 2. The method according to claim 1, characterized in that as a binder a polyester or polyester resin is used. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß als Bindemittel ein ungesättigtes Polyesterharz verwendet wird. 3. The method according to claim 2, characterized in that as a binder an unsaturated polyester resin is used. 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß dem Bindemittel ein Beschleuniger bzw. 4. The method according to any one of claims 1 to 3, characterized in that that the binding agent contains an accelerator or Härter zugesetzt wird. Hardener is added. 5. Verfahren nach wenigstens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß dem Bindemittel und/oder Härter Aluminiumoxid (A1203> als Schleifmittel zugegeben wird. 5. The method according to at least one of claims 1 to 4, characterized characterized in that the binder and / or hardener aluminum oxide (A1203> than Abrasive is added. 6. Verfahren nach wenigstens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß dem Bindemittel und/oder Härter Siliziumkarbid als Schleifmittel zugegeben wird.6. The method according to at least one of claims 1 to 4, characterized characterized in that the binder and / or hardener silicon carbide as an abrasive is admitted.
DE19803013848 1980-04-10 1980-04-10 Dentistry grinding disc or tip prodn. - by cold-mixing pref. unsatd. polyester binder and abrasive, forming and hardening Withdrawn DE3013848A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803013848 DE3013848A1 (en) 1980-04-10 1980-04-10 Dentistry grinding disc or tip prodn. - by cold-mixing pref. unsatd. polyester binder and abrasive, forming and hardening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803013848 DE3013848A1 (en) 1980-04-10 1980-04-10 Dentistry grinding disc or tip prodn. - by cold-mixing pref. unsatd. polyester binder and abrasive, forming and hardening

Publications (1)

Publication Number Publication Date
DE3013848A1 true DE3013848A1 (en) 1981-10-15

Family

ID=6099691

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803013848 Withdrawn DE3013848A1 (en) 1980-04-10 1980-04-10 Dentistry grinding disc or tip prodn. - by cold-mixing pref. unsatd. polyester binder and abrasive, forming and hardening

Country Status (1)

Country Link
DE (1) DE3013848A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381662A2 (en) * 1989-01-30 1990-08-08 MAGINDAG Steirische Magnesit-Industrie Aktiengesellschaft Process for the manufacture of abrasive bodies
EP0530646A1 (en) * 1991-08-30 1993-03-10 Minnesota Mining And Manufacturing Company Abrasive dental articles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381662A2 (en) * 1989-01-30 1990-08-08 MAGINDAG Steirische Magnesit-Industrie Aktiengesellschaft Process for the manufacture of abrasive bodies
EP0381662A3 (en) * 1989-01-30 1990-09-26 Magindag Steirische Magnesit-Industrie Aktiengesellschaft Process for the manufacture of abrasive bodies
EP0530646A1 (en) * 1991-08-30 1993-03-10 Minnesota Mining And Manufacturing Company Abrasive dental articles
AU651232B2 (en) * 1991-08-30 1994-07-14 Minnesota Mining And Manufacturing Company Abrasive dental articles

Similar Documents

Publication Publication Date Title
EP0195224A2 (en) Process for preparing artificial teeth or tooth parts and storage-stable dental material suited therefor
DE4402100A1 (en) Cold-polymerizing dental resin composition
DE1115923B (en) Process for producing molded articles from a polyester resin composition
DE3013848A1 (en) Dentistry grinding disc or tip prodn. - by cold-mixing pref. unsatd. polyester binder and abrasive, forming and hardening
DE2312258C2 (en) Dental materials for prosthetic purposes
DE3806740A1 (en) METHOD FOR HARDENING DENTAL RESIN
DE1956810A1 (en) Abrasives bound with photo-polymerisable resins
EP0468177A1 (en) Abrasive wheel
DE2553007C3 (en) Process for the production of shaped bodies having a metallic effect and preferably having a relief-like surface
DE869695C (en) Process for the production of a composite body from polymerisation synthetic resins
DE2910480C2 (en) Kneadable model wax for dental laboratory technology and application
DE736481C (en) Process for the production of artificial teeth, crowns, bridges and the like like
AT252058B (en) Washer or intermediate washer
DE3413864C1 (en) Use of a carboxylate cement as temporary fixing agent for provisional coverings of dental stumps
DE3106445A1 (en) Process for the production of a tricalcium phosphate bone ceramic for use as bone implant, in particular for filling cavities, and tricalcium phosphate ceramic shaped article produced thereby
DE662638C (en) Method of making whetstones
DE2711052A1 (en) COLD-CURING MOLDING MATERIAL FOR THE MANUFACTURE OF CASTING FORMS AND CORES
DE930120C (en) Method for attaching rubber bodies to smooth, rigid parts
EP0282701A3 (en) Process for the manufacture of an abrasive
DE4693C (en) Process for the production of emery wheels
DE603163C (en) Process for making dental abrasives
DE525076C (en) Process for the production of grinding tools with synthetic resins as binders
AT206323B (en) Grinding or polishing wheel
DE625617C (en) Process for the manufacture of objects from hardened synthetic resin or compositions containing hardened synthetic resin
DE1694041A1 (en) Process for the production of abrasive bodies

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee