US4584330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic alkali metal aluminum silicates as pigment/colorant extenders and property enhancers in plastics
Assignee: AJINOMOTA Co Inc
•
Filing: 1985-08-27
•
Granted: 1986-04-22
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Expires: 2005-08-27
Abstract
Abstract Plastic compositions having enhanced tensile, reinforcing, viscosity, opacity, brightness or pigment-extending properties comprise a plastic material having dispersed therein a synthetic sodium aluminum silicate with an average particle size of about 3.0 to 8.0 microns.
Inventors
- 👤 Satish K. Wason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:14
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
72 words
A composition comprising an unsaturated polyester gel coat or pigmented polyester sheet molding compound having dispersed therein a synthetic alkali metal aluminum silicate having an average particle size of about 3.0 to 8.0 microns, said silicate being present in said gel coat or polyester sheet molding compound in an amount effective to enhance the tensile, reinforcing, opacity, brightness, pigment extending properties of said polyester gel coat or said polyester sheet molding compound.
Claim 2
Dependent Claim
72 words
A composition comprising an unsaturated polyester gel coat or pigmented polyester sheet molding compound having dispersed therein a synthetic alkali metal aluminum silicate having an average particle size of about 3.0 to 8.0 microns, said silicate being present in said gel coat or polyester sheet molding compound in an amount effective to enhance the tensile, reinforcing, opacity, brightness, pigment extending properties of said polyester gel coat or said polyester sheet molding compound.
Claim 3
Dependent Claim
26 words
The composition of claim 1, wherein said silicate is synthetic sodium aluminum silicate which comprises about 0.5 up to about 40 wt % of the composition.
Claim 4
Dependent Claim
30 words
The composition of claim 2, wherein said plastic material is an unsaturated polyester gel coat, and said synthetic sodium aluminum silicate is present in an amount effective to enhance opacity.
Claim 5
Dependent Claim
31 words
The composition of claim 1, wherein said plastic material is a pigmented polyester sheet molding compound, and said synthetic sodium aluminum silicate is present in an amount effective to extend pigments.
Claim 6
Independent Claim
69 words
A method for enhancing the tensile, reinforcing, opacity, brightness, and pigment extending properties of a plastic composition selected from the group consisting of an unsaturated polyester gel coat and a pigmented polyester sheet molding compound, comprising dispersing in said plastic composition a synthetic sodium aluminum silicate having an average particle size of about 3.0 to 8.0 microns, said silicate being present in an amount effective to enhance said properties.
Claim 7
Independent Claim
69 words
A method for enhancing the tensile, reinforcing, opacity, brightness, and pigment extending properties of a plastic composition selected from the group consisting of an unsaturated polyester gel coat and a pigmented polyester sheet molding compound, comprising dispersing in said plastic composition a synthetic sodium aluminum silicate having an average particle size of about 3.0 to 8.0 microns, said silicate being present in an amount effective to enhance said properties.
Claim 8
Dependent Claim
22 words
The method of claim 5, wherein said synthetic sodium aluminum silicate comprises about 0.5 up to 40 wt % of the composition.
Claim 9
Dependent Claim
30 words
The method of claim 6, wherein said plastic material is an unsaturated polyester gel coat, and said synthetic sodium aluminum silicate is present in an amount effective to enhance opacity.
Claim 10
Dependent Claim
30 words
The method of claim 6, wherein said plastic material is a pigmented polyester sheet molding compound; and said synthetic aluminum silicate is present in an amount effective to extend pigments.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |