# US 4,655,564 A · Spectacle frame and parts thereof

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- Number: US 4,655,564 A
- Document ID: US4655564A
- Status: Granted
- Kind: A
- Application number: 06/667,966
- Filed: 1984-11-05
- Granted: 1987-04-07
- Earliest claimed: 1984-08-07
- Assignees: Simro AG
- Inventors: Guenther Czech
- Web page: https://patentgrep.com/patent/US4655564A

## CPC

- B29D 12/02: Spectacle frames (constructional form G02C)
- G02C 5/00: Constructions of non-optical parts
- G02C 5/008: {Spectacles frames characterized by their material, material structure and material properties}
- B29K 2079/00: Use of polymers having nitrogen, with or without oxygen or carbon only, in the main chain {, not provided for in groups B29K2061/00 - B29K2077/00}, as moulding material
- B29K 2081/00: Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
- G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

## Abstract

The present invention relates to plastic eyewear, i.e. spectacle frames and parts thereof in which the plastic is selected from the group consisting of polyetherimide and polyethersulfone.

## Claims

### Claim 1

Spectacle frame and parts thereof of plastic, wherein said spectacle frame and parts thereof are substantially comprised of a polyetherimide which exhibits the following repeating unit: ##STR3## or is comprised of a polyethersulfone which exhibits the following repeating unit: ##STR4##

### Claim 2 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein said plastic is a polyetherimide having a vitreous temperature of 210.degree. to 230.degree. C.

### Claim 3 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein said plastic is a polyetherimide having a vitreous temperature of 215.degree. to 220.degree. C.

### Claim 4 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein said plastic is polyethersulfone and has a softening point according to Vicat, measured according to ASTM D 1525, of 210.degree. to 230.degree. C.

### Claim 5 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein said plastic is polyethersulfone and has a softening point according to Vicat, measured according to ASTM D 1525, of 220.degree. to 230.degree. C.

### Claim 6 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein said polyetherimide or polyethersulfone has an elastic resilience potential similar to that of spectacle frame metal.

### Claim 7 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein said polyetherimide or polyethersulfone is not reinforced.

### Claim 8 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein said polyetherimide or polyethersulfone is reinforced with glass or carbon fibers.

### Claim 9 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein said polyetherimide or polyethersulfone contains metal dust and/or color pigments.

### Claim 10 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein the surface of the polyetherimide or polyethersulfone is pigmented or metalized.

### Claim 11 (depends on 1)

Spectacle frame and parts thereof according to claim 1, wherein the frame and its parts contain no supporting inserts.

### Claim 12

Use of polyetherimide which exhibits the following repeating unit: ##STR5## or polyethersulfone which exhibits the following repeating unit: ##STR6## for the production of a spectacle frame and parts thereof, especially the temple, flange and bridges by injection molding.