Patent US4668412A successfully refreshed from Google Patents.
Patent US3903340A successfully refreshed from Google Patents.
US3903340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing roof shingle and method of providing enhanced separation of shingles from a stack
Assignee: Johns Manville Corp
•
Filing: 1973-08-01
•
Granted: 1975-09-02
•
Expires: 1993-08-01
Abstract
Abstract A roof shingle of the self-sealing type which includes a selfsealing adhesive stripe on one surface is disclosed herein. The shingle also includes on its opposite surface, in alignment with the self-sealing adhesive stripe, an improved separating medium comprising sheet material, preferably polyester film, which is coated on its exposed surface with a predetermined amount of methyl naphthylene sodium sulfonate. When shingles of this type are positioned in an aligned stack or bundle, which is typical during shipment, the improved separating medium of one shingle covers the self-sealing adhesive stripe of an adjacent shingle for providing satisfactory separation of the shingles from the stack, especially at high ambient temperatures.
Inventors
- 👤 Philip B Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:45
CPC Classifications
E; E04; E04D; E04D1/00; E04D1/26; E04D1/29; Y; Y10; Y10S; Y10S206/00; Y10S206/813; Y10S52/00; Y10S52/16; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24802; Y10T428/28
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
76 words
A method of minimizing damage to a roofing shingle of the self-sealing type which includes a self-sealing adhesive on one surface, comprising: a. providing sheet material which is of sufficient size to cover said self-sealing adhesive; b. coating one surface of said material with a substance containing methyl naphthylene sodium sulfonate, and c. covering said adhesive on said shingle with said material with the coated surface of said material facing and in contact with said adhesive.
Claim 2
Independent Claim
76 words
A method of minimizing damage to a roofing shingle of the self-sealing type which includes a self-sealing adhesive on one surface, comprising: a. providing sheet material which is of sufficient size to cover said self-sealing adhesive; b. coating one surface of said material with a substance containing methyl naphthylene sodium sulfonate, and c. covering said adhesive on said shingle with said material with the coated surface of said material facing and in contact with said adhesive.
Claim 3
Dependent Claim
13 words
A method according to claim 1 wherein said sheet material is plastic foil.
Claim 4
Dependent Claim
13 words
A method according to claim 2 wherein said plastic foil is polyester film.
Claim 5
Dependent Claim
54 words
A method according to claim 1 wherein said coating step includes: a. preparing a solution of 90 to 99 1/2 parts water and 1/2 to 10 parts of said methyl naphthylene sodium sulfonate; b. applying said solution to said one surface of said sheet material; and c. removing the water from said applied solution.
Claim 6
Dependent Claim
139 words
A meethod of minimizing damage to a first roofing shingle of the self-sealing type which includes a self-sealing adhesive on one surface during separation of said first shingle from the surface of a second shingle of this type when the two shingles are aligned in a stack with the adhesive of said first shingle therebetween, comprising: a. providing sheet material which is of sufficient size to cover the self-sealing adhesive on said first shingle; b. coating one surface of said material with a substance containing methyl naphthylene sodium sulfonate; and c. locating said coated sheet material in a fixed position relative to one of said shingles such that, when said shingles are aligned in said stack, the coated material is positioned therebetween and the coated surface of said sheet material faces and covers the adhesive on said first shingle.
Claim 7
Dependent Claim
139 words
A meethod of minimizing damage to a first roofing shingle of the self-sealing type which includes a self-sealing adhesive on one surface during separation of said first shingle from the surface of a second shingle of this type when the two shingles are aligned in a stack with the adhesive of said first shingle therebetween, comprising: a. providing sheet material which is of sufficient size to cover the self-sealing adhesive on said first shingle; b. coating one surface of said material with a substance containing methyl naphthylene sodium sulfonate; and c. locating said coated sheet material in a fixed position relative to one of said shingles such that, when said shingles are aligned in said stack, the coated material is positioned therebetween and the coated surface of said sheet material faces and covers the adhesive on said first shingle.
Claim 8
Dependent Claim
40 words
A method according to claim 5 wherein said locating step includes attaching said coated sheet material to the surface of said second shingle which would face the adhesive of said first shingle if said shingles were aligned in said stack.
Claim 9
Dependent Claim
38 words
A method according to claim 6 wherein said coated sheet material is sufficiently permanently attached to said second shingle such that, upon separating said shingles from said stack, said coated sheet material remains fixed to said second shingle.
Claim 10
Dependent Claim
35 words
A method according to claim 7 including attaching coated sheet material similar to said coated sheet material to the surface of said first shingle opposite the surface of said first shingle which includes said adhesive.
Claim 11
Dependent Claim
13 words
A method according to claim 8 wherein said sheet material is plastic foil.
Claim 12
Dependent Claim
13 words
A method according to claim 9 Wherein said plastic foil is polyester film.
Claim 13
Dependent Claim
54 words
A method according to claim 5 wherein said coating step includes: a. preparing a solution of 90 to 99 1/2 parts water and 1/2 to 10 parts of said methyl naphthylene sodium sulfonate; b. applying said solution to said one surface of said sheet material; and c. removing the water from said applied solution.
Claim 14
Dependent Claim
145 words
A ROOFING SHINGLE OF THE SELF-SEALING TYPE, COMPRISING: A. A SHINGLE BODY HAVING OPPOSITE FIRST AND SECOND SURFACES: B. A SELF-SEALING ADHESIVE APPLIED TO THE FIRST SURFACE OF SAID SHINGLE BODY AT A SPECIFC POSITION ON SAID FIRST SURFACE: C. A SEPARATING MEDIUM COMPRISING SHEET MATERIAL WHICH IS SUFFICIENTLY LARGE TO COVER SAID ADHESIVE AND WHICH IS COATED ON ONE SURFACE WITH METHYL NAPHTHYLENE SODIUM SULFONATE: AND D. SAID SEPARATING MEDIUM BEING ATTACHED WITH THE SECOND SURFACE OF SAID SHINGLE BODY WITH ITS COATED SURFACE FACING AWAY FROM SAID SECOND SURFACE, SAID SEPARATING MEDIUM BEING ATTACHED AT A SPECIFIC POSITION ON SAID SECOND SURFACE SUCH THAT ITS COATED SURFACE IS ADAPTED TO COVER THE SELF-SEALING ADHESIVE ON A SECOND SIMILAR ROOFING SHINGLE IF SAID ROOFING SHINGLE AND SAID SECOND SIMILAR ROOFING SHINGLE WERE ALIGNED IN A STACK WITH THE ADHESIVE OF THE SECOND SHINGLE THEREBETWEEN.
Claim 15
Dependent Claim
145 words
A ROOFING SHINGLE OF THE SELF-SEALING TYPE, COMPRISING: A. A SHINGLE BODY HAVING OPPOSITE FIRST AND SECOND SURFACES: B. A SELF-SEALING ADHESIVE APPLIED TO THE FIRST SURFACE OF SAID SHINGLE BODY AT A SPECIFC POSITION ON SAID FIRST SURFACE: C. A SEPARATING MEDIUM COMPRISING SHEET MATERIAL WHICH IS SUFFICIENTLY LARGE TO COVER SAID ADHESIVE AND WHICH IS COATED ON ONE SURFACE WITH METHYL NAPHTHYLENE SODIUM SULFONATE: AND D. SAID SEPARATING MEDIUM BEING ATTACHED WITH THE SECOND SURFACE OF SAID SHINGLE BODY WITH ITS COATED SURFACE FACING AWAY FROM SAID SECOND SURFACE, SAID SEPARATING MEDIUM BEING ATTACHED AT A SPECIFIC POSITION ON SAID SECOND SURFACE SUCH THAT ITS COATED SURFACE IS ADAPTED TO COVER THE SELF-SEALING ADHESIVE ON A SECOND SIMILAR ROOFING SHINGLE IF SAID ROOFING SHINGLE AND SAID SECOND SIMILAR ROOFING SHINGLE WERE ALIGNED IN A STACK WITH THE ADHESIVE OF THE SECOND SHINGLE THEREBETWEEN.
Claim 16
Dependent Claim
14 words
A roofing shingle according to claim 12 wherein said separating medium is plastic foil.
Claim 17
Dependent Claim
14 words
A roofing shingle according to claim 13 wherein said plastic foil is polyester film.
Claim 18
Dependent Claim
14 words
A roofing shingle according to claim 12 wherein said shingle is a bituminous shingle.
Claim 19
Dependent Claim
60 words
A roofing shingle according to claim 12 wherein: a. said self-sealing adhesive comprises a plurality of interrupted sections of adhesive which together extend across the first surface of said shingle body; and b. said separating medium comprises a stripe of said sheet material extending across the second surface of said shingle body in alignment with said interrupted sections of adhesive.
Claim 20
Dependent Claim
16 words
A roofing shingle according to claim 16 wherein said stripe of sheet material comprises polyester film.
Claim 21
Dependent Claim
33 words
A roofing shingle according to claim 12 wherein approximately 0.4 to 1.0 grams of said methyl naphthylene sodium sulfonate is on said one surface of said separating medium per square foot surface area.
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) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |