US4296158A — Information carrying discs

Claim 1

Independent Claim 379 words

An information-carrying element comprising a substrate having adhered to at least one surface thereof a separate layer having a maximum thickness of from 1.0 to 100 μm and a circular or spiral pattern of grooves with or without modulations, depressions, protuberances, said separate layer comprising a polymer layer derived from 15 to 100% by weight of at least one polyacryloyl-containing heterocyclic wherein said heterocyclic is selected from the formulae: A.sup.1 --Z--A.sup.2 ( 1) wherein A 1 and A 2 independently are alkoxyalkyl groups having terminal ethylenic unsaturation and having the formula ##STR12## wherein R--O-- is a monovalent residue of an aliphatic terminally unsaturated primary alcohol, ROH, formed by the removal of the active hydrogen from the primary --OH group, R having the formula: ##STR13## wherein E is ##STR14## c is an integer of from 1 to 6, R 1 and R 4 are independently selected from hydrogen and methyl, R 5 is an aliphatic group having from 1 to 15 carbon atoms, and no more than two catenary oxygen or carboxy groups, a valence of m+1. m is an integer of from 1 to 5, R 2 is selected from hydrogen and groups of the formula ##STR15## wherein R 6 is selected from alkyl and alkenyl groups R 7 is an aliphatic or aromatic group of up to eight carbon atoms, R 3 is an alkylene group of from 1 to 6 carbon atoms with up to one catenary oxygen atom, and Z is a heterocyclic group of the formula ##STR16## wherein X is a divalent group which is required to complete a 5- or 6-membered heterocyclic ring, or ##STR17## wherein R 12 and R 13 independently represent hydrogen or methyl, R 14 represents hydrogen, an alkyl group, or a phenyl group, R 13 and R 14 together may represent trimethylene or tetramethylene group, m represents a number of from 1 to 30, n is 2 or 3, and A represents a group of the formula ##STR18## wherein X 1 represents the divalent radical necessary to complete a 5- or 6-membered heterocyclic ring group, said process comprising exposing said composition to radiation while the composition is in the presence of an atomosphere of at least 2% by volume of oxygen to polymerize said components having formula (1) or (2).

Claim 2

Dependent Claim 379 words

An information-carrying element comprising a substrate having adhered to at least one surface thereof a separate layer having a maximum thickness of from 1.0 to 100 μm and a circular or spiral pattern of grooves with or without modulations, depressions, protuberances, said separate layer comprising a polymer layer derived from 15 to 100% by weight of at least one polyacryloyl-containing heterocyclic wherein said heterocyclic is selected from the formulae: A.sup.1 --Z--A.sup.2 ( 1) wherein A 1 and A 2 independently are alkoxyalkyl groups having terminal ethylenic unsaturation and having the formula ##STR12## wherein R--O-- is a monovalent residue of an aliphatic terminally unsaturated primary alcohol, ROH, formed by the removal of the active hydrogen from the primary --OH group, R having the formula: ##STR13## wherein E is ##STR14## c is an integer of from 1 to 6, R 1 and R 4 are independently selected from hydrogen and methyl, R 5 is an aliphatic group having from 1 to 15 carbon atoms, and no more than two catenary oxygen or carboxy groups, a valence of m+1. m is an integer of from 1 to 5, R 2 is selected from hydrogen and groups of the formula ##STR15## wherein R 6 is selected from alkyl and alkenyl groups R 7 is an aliphatic or aromatic group of up to eight carbon atoms, R 3 is an alkylene group of from 1 to 6 carbon atoms with up to one catenary oxygen atom, and Z is a heterocyclic group of the formula ##STR16## wherein X is a divalent group which is required to complete a 5- or 6-membered heterocyclic ring, or ##STR17## wherein R 12 and R 13 independently represent hydrogen or methyl, R 14 represents hydrogen, an alkyl group, or a phenyl group, R 13 and R 14 together may represent trimethylene or tetramethylene group, m represents a number of from 1 to 30, n is 2 or 3, and A represents a group of the formula ##STR18## wherein X 1 represents the divalent radical necessary to complete a 5- or 6-membered heterocyclic ring group, said process comprising exposing said composition to radiation while the composition is in the presence of an atomosphere of at least 2% by volume of oxygen to polymerize said components having formula (1) or (2).

Claim 3

Dependent Claim 24 words

The element of claim 1 wherein said polymer layer was derived from 30 to 100% by weight of at least one polyacryoyl containing heterocyclic.

Claim 4

Dependent Claim 65 words

The element of claim 1 wherein said heterocyclic is selected from formula (2), m is 1 to 4, and X 1 is selected from ##STR19## wherein R 15 , R 16 , R 17 and R 18 independently represent hydrogen, an alkyl group, and alkylene group, a cycloalkyl group, or a phenyl group, and R 19 represents hydrogen, an aliphatic group, or an aromatic group.

Claim 5

Dependent Claim 44 words

The element of claim 3 wherein R 15 , R 16 , R 17 and R 18 are selected from hydrogen, alkyl of 1 to 4 carbon atoms, alkylene or 1 to 4 carbon atoms, or phenyl, and X 1 is selected from ##STR20##

Claim 6

Dependent Claim 76 words

The element of claim 1 wherein said heterocyclic is selected from formula (1) and X is selected from: ##STR21## wherein R 8 , R 9 , R 10 , and R 11 are independently hydrogen, alkyl group of 1 to 4 carbon atoms, cycloalkyl group of 3 to 6 carbon atoms, and phenyl group of 6 to 12 carbon atoms, and A 3 is an alkoxyalkyl group as defined for A 1 and A 2 .

Claim 7

Dependent Claim 28 words

The element of claim 5 wherein ##STR22## and R 8 and R 9 are hydrogen or alkyl of 1 to 4 carbon atoms and R 2 is hydrogen.

Claim 8

Dependent Claim 18 words

The element of claim 6 wherein ##STR23## and R 5 is alkylene of 1 to 15 carbon atoms.

Claim 9

Dependent Claim 26 words

The element of claim 1 wherein said polymer layer is further derived from 70 to 10% by weight of acrylates copolymerizable with said plyacryloyl containing heterocyclic.

Claim 10

Dependent Claim 26 words

The element of claim 6 wherein said polymer layer is further derived from 70 to 10% by weight of acrylates copolymerizable with said polyacryloyl containing heterocyclic.

Claim 11

Dependent Claim 74 words

The elements of claims 3, 4, 5, 6, 7, 8 or 9 in which said information carrying element comprises a disc having a circular pattern of grooves with information-carrying deformities in the form of modulations, depressions or protuberances wherein the depth or height of the information-carrying deformities from the mean height of the surface is between 0.03 and 2 μm and said separate layer is between 1 and 25 μm in its maximum thickness.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1984-10-19	1985-04-20	1985-10-20	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1988-10-19	1989-04-20	1989-10-20	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1992-10-19	1993-04-20	1993-10-20	$7700.00	Window Closed / Lapsed

Information carrying discs

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