Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
A process in accordance with claim 1 for the production of a matrix molding board, further comprising: g. coating said base on at least one side thereof with a molding mixture in fluent condition and comprising a second thermosetting resin and a filler; and h. solidifying said molding mixture on said base to provide said matrix molding board having a surface layer and a back; whereby said matrix molding board may be subsequently molded against an original form under heat and pressure to shape the surface of said matrix molding board to cure said first mentioned thermosetting resin and said second thermosetting resin and to form a shaped matrix.
Claim 2
Dependent Claim
94 words
A process in accordance with claim 1 for the production of a matrix molding board comprising: carrying out said steps (a), (b), and (c); carrying out said step (d); d-1. applying to one side of said mat a layer of a powdery molding mixture of a second thermosetting resin and a filler, whereby said compressing operation of said step (e) also causes said second thermosetting resin to become molten thereby bonding said filler to said mat, said second thermosetting resin remaining uncured, to thereby provide after said cooling step (f) said matrix molding board.
Claim 3
Dependent Claim
30 words
A process in accordance with claim 3 further comprising: d-2. after said step (d-1) applying heat to said layer of powdery molding mixture to sinter together the thermosetting resin powder.
Claim 4
Dependent Claim
86 words
A process in accordance with claim 1 for the production of a matrix molding board comprising: carrying out said steps (a), (b), (c) and (d); and d-1. applying to one side of said mat a preformed base sheet impregnated with a second thermosetting resin, whereby said compressing of said step (e) also causes said second thermosetting resin to become molten thereby bonding said base sheet to said mat, said second thermosetting resin remaining uncured to thereby provide after said cooling step (f) said matrix molding board.
Claim 5
Dependent Claim
105 words
A process in accordance with claim 3 comprising: after carrying out said steps (a), (b) and (c), then (c-1) providing a preformed sheet impregnated with a third thermosetting resin; and then carrying out said steps (d) and (d-1) by applying said refined composition over said preformed sheet to form said mat and then applying said powdery mixture of said second thermosetting resin and filler to the top of said mat; whereby said compressing of said step (e) also causes said third thermosetting resin to become molten thereby bonding said preformed sheet to said mat to form a balance layer, said third thermosetting resin remaining uncured.
Claim 6
Dependent Claim
178 words
A process in accordance with claim 1 for the production of a matrix molding board comprising: carrying out said steps (a), (b), (c) and (d), wherein in step (d) two to eighty parts by weight of said refined composition is deposited to provide said mat; d-1. applying to the top of said mat one to sixteen parts by weight of a powdery molding mixture of a second thermosetting resin and a filler to form a first layer over said mat; d-2. dry-forming 20-80 parts by weight of a second quantity of said refined composition by allowing the fibers to fall down and lie in random directions in the form of a second mat over said first layer on said first mentioned mat; d-3. applying to the top of said second mat four parts by weight of a second quantity of said powdery molding mixture; whereby said compressing of said step (e) causes said layers and mats to become bonded together, without curing of said thermosetting resins, to thereby provide after said cooling step (f) said matrix molding board.
Claim 7
Dependent Claim
115 words
A process in accordance with claim 2 for the production of a shaped matrix such as for use in making printing plates, further comprising: i. placing said back of said matrix molding board on a metallic backing element having holes therein; j. placing an original form over said matrix molding board having said surface layer of said matrix molding board; and k. molding said surface layer of said matrix molding board against said original form and said back of said matrix molding board against said metallic backing under heat and pressure between heated platens to shape the Surface layer of said matrix molding board and to cure said thermosetting resins thereby forming said shaped matrix.