US4666785A — Roof sheeting or roof flashing

Claim 1

Independent Claim 137 words

A method of protecting a roof against water leaks comprising: (a) providing a self-curing, flexible and formable composition comprising: (i) 100 parts of an elastomer selected from the group consisting of EPDM, butyl rubber and mixtures thereof; (ii) 0.1 to 3.0 parts of a compound having the structural formula: [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (ii) and (iii) provide at least 0.25 part of total available sulfur, all parts being by weight; and wherein said composition exhibits an increase in torque between the minimum value and the value obtained after 60 minutes at 100° C. of at least about 15 cNm; and (b) disposing said composition upon at least a portion of said roof.

Claim 2

Independent Claim 137 words

A method of protecting a roof against water leaks comprising: (a) providing a self-curing, flexible and formable composition comprising: (i) 100 parts of an elastomer selected from the group consisting of EPDM, butyl rubber and mixtures thereof; (ii) 0.1 to 3.0 parts of a compound having the structural formula: [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (ii) and (iii) provide at least 0.25 part of total available sulfur, all parts being by weight; and wherein said composition exhibits an increase in torque between the minimum value and the value obtained after 60 minutes at 100° C. of at least about 15 cNm; and (b) disposing said composition upon at least a portion of said roof.

Claim 3

Dependent Claim 19 words

The method of claim 1, wherein said composition exhibits an increase in torque of at least about 31 cNm.

Claim 4

Dependent Claim 19 words

The method of claim 1, wherein the composition comprises from 0.4 to 5.0 parts of a sulfur donor curative.

Claim 5

Dependent Claim 28 words

The method of claim 1, wherein the composition comprises from 0.4 to 3.0 parts of compound (ii) and 0.2 to 2.0 parts of the sulfur donor curative (iii).

Claim 6

Dependent Claim 18 words

The method of claim 1, wherein the composition is disposed as a single layer roofing or flashing sheet.

Claim 7

Dependent Claim 12 words

The method of claim 1 wherein the component (ii) is dipentamethylenethiuram hexasulfide.

Claim 8

Dependent Claim 36 words

The method of claim 1, wherein said composition upon exposure to a temperature of 70° C. for 28 days in a circulating hot air oven attains an increase in tensile strength of at least 141 percent.

Claim 9

Independent Claim 126 words

A method of protecting a roof against water leaks comprising: (a) providing a self-curing, flexible and formable composition comprising: (i) 100 parts of an EPDM elastomer; (ii) 0.1 to 3.0 parts of a compound having the structural formula: [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (ii) and (iii) provide at least 0.25 part of total available sulfur, all parts being by weight; and wherein said composition exhibits an increase in torque between the minimum value and the value obtained after 60 minutes at 100° C. of at least about 15 cNm; and (b) disposing said composition upon at least a portion of said roof.

Claim 10

Independent Claim 126 words

A method of protecting a roof against water leaks comprising: (a) providing a self-curing, flexible and formable composition comprising: (i) 100 parts of an EPDM elastomer; (ii) 0.1 to 3.0 parts of a compound having the structural formula: [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (ii) and (iii) provide at least 0.25 part of total available sulfur, all parts being by weight; and wherein said composition exhibits an increase in torque between the minimum value and the value obtained after 60 minutes at 100° C. of at least about 15 cNm; and (b) disposing said composition upon at least a portion of said roof.

Claim 11

Dependent Claim 19 words

A method of claim 8, wherein said composition exhibits an increas in torque of at least about 31 cNm.

Claim 12

Dependent Claim 19 words

The method of claim 8, wherein the composition comprises from 0.4 to 5.0 parts of a sulfur donor curative.

Claim 13

Dependent Claim 28 words

The method of claim 8, wherein the composition comprises from 0.4 to 3.0 parts of compound (ii) and 0.2 to 2.0 parts of the sulfur donor curative (iii).

Claim 14

Dependent Claim 18 words

The method of claim 8, wherein the composition is disposed as a single layer roofing or flashing sheet.

Claim 15

Dependent Claim 12 words

The method of claim 8, wherein the component (ii) is dipentamethylenethiuram hexasulfide.

Claim 16

Independent Claim 127 words

A method of protecting a roof against water leaks comprising: (a) providing a self-curing, flexible and formable composition comprising: (i) 100 parts of a butyl rubber elastomer; (ii) 0.1 to 3.0 parts of a compound having the structural formula: [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (ii) and (iii) provide at least 0.25 part of total available sulfur, all parts being by weight; and wherein said composition exhibits an increase in torque between the minimum value and the value obtained after 60 minutes at 100° C. of at least about 15 cNm; and (b) disposing said composition upon at least a portion of said roof.

Claim 17

Independent Claim 127 words

A method of protecting a roof against water leaks comprising: (a) providing a self-curing, flexible and formable composition comprising: (i) 100 parts of a butyl rubber elastomer; (ii) 0.1 to 3.0 parts of a compound having the structural formula: [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (ii) and (iii) provide at least 0.25 part of total available sulfur, all parts being by weight; and wherein said composition exhibits an increase in torque between the minimum value and the value obtained after 60 minutes at 100° C. of at least about 15 cNm; and (b) disposing said composition upon at least a portion of said roof.

Claim 18

Dependent Claim 19 words

The method of claim 14, wherein said composition exhibits an increase in torque of at least about 31 cNm.

Claim 19

Dependent Claim 19 words

The method of claim 14, wherein the composition comprises from 0.4 to 5.0 parts of a sulfur donor curative.

Claim 20

Dependent Claim 28 words

The method of claim 14, wherein the composition comprises from 0.4 to 3.0 parts of compound (ii) and 0.2 to 2.0 parts of the sulfur donor curative (iii).

Claim 21

Dependent Claim 18 words

The method of claim 14, wherein the composition is disposed as a single layer roofing or flashing sheet.

Claim 22

Dependent Claim 12 words

The method of claim 14, wherein the component (ii) is dipentamethylenethiuram hexasulfide.

Claim 23

Independent Claim 129 words

A method of protecting a roof against water leaks comprising: (a) providing a self-curing, flexible and formable composition comprising: (i) 100 parts of EPDM and butyl rubber elastomeric mixture; (ii) 0.1 to 3.0 parts of a compound having the structural formula: [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (ii) and (iii) provide at least 0.25 part of total available sulfur, all parts being by weight; and wherein said composition exhibits an increase in torque between the minimum value and the value obtained after 60 minutes at 100° C. of at least about 15 cNm; and (b) disposing said composition upon at least a portion of said roof.

Claim 24

Independent Claim 129 words

A method of protecting a roof against water leaks comprising: (a) providing a self-curing, flexible and formable composition comprising: (i) 100 parts of EPDM and butyl rubber elastomeric mixture; (ii) 0.1 to 3.0 parts of a compound having the structural formula: [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (ii) and (iii) provide at least 0.25 part of total available sulfur, all parts being by weight; and wherein said composition exhibits an increase in torque between the minimum value and the value obtained after 60 minutes at 100° C. of at least about 15 cNm; and (b) disposing said composition upon at least a portion of said roof.

Claim 25

Dependent Claim 19 words

A method of claim 20, wherein said composition exhibits an increase in torque of at least about 31 cNm.

Claim 26

Dependent Claim 19 words

The method of claim 20, wherein the composition comprises from 0.4 to 5.0 parts of a sulfur donor curative.

Claim 27

Dependent Claim 28 words

The method of claim 20, wherein the composition comprises from 0.4 to 3.0 parts of compound (ii) and 0.2 to 2.0 parts of the sulfur donor curative (iii).

Claim 28

Dependent Claim 18 words

The method of claim 20, wherein the composition is disposed as a single layer roofing or flashing sheet.

Claim 29

Dependent Claim 12 words

The method of claim 20, wherein the component (ii) is dipentamethylenethiuram hexasulfide.

Claim 30

Dependent Claim 88 words

A roof having disposed thereon a self-curing, flexible and formable composition comprising: (i) 100 parts of an elastomer selected from the group consisting of EPDM, butyl rubber and mixtures thereof; (ii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 31

Dependent Claim 88 words

A roof having disposed thereon a self-curing, flexible and formable composition comprising: (i) 100 parts of an elastomer selected from the group consisting of EPDM, butyl rubber and mixtures thereof; (ii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 32

Dependent Claim 36 words

The roof of claim 26, wherein said composition upon exposure to a temperature of 70° C. for 28 days in a circulating hot air oven attains an increase in tensile strength of at least 32 percent.

Claim 33

Dependent Claim 15 words

The roof of claim 26, wherein the component (ii) of the composition is dipentamethylenethiuram hexasulfide.

Claim 34

Dependent Claim 77 words

A roof having disposed thereon a self-curing, flexible and formable composition comprising: (i) 100 parts of an EPDM elastomer; (ii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 35

Dependent Claim 77 words

A roof having disposed thereon a self-curing, flexible and formable composition comprising: (i) 100 parts of an EPDM elastomer; (ii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 36

Dependent Claim 36 words

The roof of claim 29, wherein said composition upon exposure to a temperature of 70° C. for 28 days in a circulating hot air oven attains an increase in tensile strength of at least 32 percent.

Claim 37

Dependent Claim 15 words

The roof of claim 29, wherein the component (ii) of the composition is dipentamethylenethiuram hexasulfide.

Claim 38

Dependent Claim 78 words

A roof having disposed thereon a self-curing, flexible and formable composition comprising: (i) 100 parts of a butyl rubber elastomer; (ii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 39

Dependent Claim 78 words

A roof having disposed thereon a self-curing, flexible and formable composition comprising: (i) 100 parts of a butyl rubber elastomer; (ii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 40

Dependent Claim 36 words

The roof of claim 32, wherein said composition upon exposure to a temperature of 70° C. for 28 days in a circulating hot air oven attains an increase in tensile strength of at leat 32 percent.

Claim 41

Dependent Claim 15 words

The roof of claim 32, wherein the component (ii) of the composition is dipentamethylenethiuram hexasulfide.

Claim 42

Dependent Claim 80 words

A roof having disposed thereon a self-curing, flexible and formable composition comprising: (i) 100 parts of an EPDM, butyl rubber elastomer mixture; (ii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 43

Dependent Claim 80 words

A roof having disposed thereon a self-curing, flexible and formable composition comprising: (i) 100 parts of an EPDM, butyl rubber elastomer mixture; (ii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 44

Dependent Claim 36 words

The roof of claim 35, wherein said composition upon exposure to a temperature of 70° C. for 28 days in a circulating hot air oven attains an increase in tensile strength of at leat 32 percent.

Claim 45

Dependent Claim 15 words

The roof of claim 35, wherein the component (ii) of the composition is dipentamethylenethiuram hexasulfide.

Claim 46

Dependent Claim 85 words

A roof sheeting or roof flashing comprising: (i) 100 parts of an elastomer selected from the group consisting of ethylene-propylene-non-conjugated diene terpolymer, butyl rubber and mixtures thereof; (iii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 47

Dependent Claim 85 words

A roof sheeting or roof flashing comprising: (i) 100 parts of an elastomer selected from the group consisting of ethylene-propylene-non-conjugated diene terpolymer, butyl rubber and mixtures thereof; (iii) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (iii) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.

Claim 48

Dependent Claim 16 words

The roof sheeting or roof flashing of claim 38, wherein the component (ii) is dipentamethylenethiuram hexasulfide.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1990-05-18	1990-11-17	1991-05-19	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1994-05-18	1994-11-17	1995-05-19	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1998-05-18	1998-11-17	1999-05-19	$7700.00	Window Closed / Lapsed

Roof sheeting or roof flashing

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