Patent US2079144A successfully refreshed from Google Patents.
Patent US3655423A successfully refreshed from Google Patents.
US3655423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pretreatment of plastic surfaces before the application of an adherent organic coating
Assignee: Hooker Chemical Corp
•
Filing: 1970-03-03
•
Granted: 1972-04-11
•
Expires: 1990-03-03
Abstract
Abstract The adhesion of organic coatings, e.g., paints, varnishes, dyes, and the like, to plastic substrates is improved by pretreating a plastic substrate with a reaction product of elemental phosphorus and a nucleophilic reagent or an organometallic compound. Following this pretreatment, which deposits a low oxidation state phosphorus compound at the plastic surface, the thus-treated surface is coated with an organic coating composition.
Inventors
- 👤 Kingso C Lin
- 👤 Emil J Geering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:47
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/06; C08J7/0427; C08J7/043; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31551
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
43 words
The process of claim 1 wherein the nucleophilic reagent is of the formula MZy wherein M is an alkali metal or alkaline earth metal, y is one or two, and Z is hydroxide, alkoxide, amide, sulfite, thiosulfate, mercaptide, cyanate, thiocyanate, cyanide or azide.
Claim 2
Dependent Claim
9 words
The process of claim 2 wherein Z is alkoxide.
Claim 3
Dependent Claim
15 words
The process of claim 3 wherein the organic coating composition is a siccative coating composition.
Claim 4
Dependent Claim
14 words
The process of claim 3 wherein the organic coating composition is a polyurethane adhesive.
Claim 5
Dependent Claim
14 words
The process of claim 3 wherein the organic coating composition is an epoxY adhesive.
Claim 6
Dependent Claim
13 words
The process of claim 3 wherein the organic coating composition is a dye.
Claim 7
Dependent Claim
35 words
A plastic article having adherently bound to the surface thereof a reaction product of elemental phosphorus and a nucleophilic reagent or organometallic compound, and having an organic coating composition adherently bound to said reaction product.
Claim 8
Dependent Claim
20 words
The article of claim 8 wherein the nucleophilic reagent is an alkali metal alkoxide or an alkaline earth metal alkoxide.
Claim 9
Dependent Claim
15 words
The article of claim 9 wherein the organic coating composition is a siccative coating composition.
Claim 10
Dependent Claim
14 words
The article of claim 9 wherein the organic coating composition is a polyurethane adhesive.
Claim 11
Dependent Claim
14 words
The article of claim 9 wherein the organic coating composition is an epoxy adhesive.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |