71.
    发明专利
    未知

    公开(公告)号:DE3889977D1

    公开(公告)日:1994-07-14

    申请号:DE3889977

    申请日:1988-06-24

    Applicant: BASF AG

    Abstract: A radiation-sensitive mixture consists of a polymeric binder which is insoluble in water but soluble in aqueous alkaline solutions, and of an organic compound whose solubility in an aqueous alkaline developer is increased by the action of an acid and which contains both one or more acid-cleavable groups and a group which forms a strong acid under the action of radiation. The radiation-sensitive mixture is suitable for use in photosensitive coating materials for the production of relief patterns and relief images.

    72.
    发明专利
    未知

    公开(公告)号:DE58906521D1

    公开(公告)日:1994-02-10

    申请号:DE58906521

    申请日:1989-05-10

    Applicant: BASF AG

    Abstract: The invention relates to a radiation-sensitive mixture which contains… (a) a polymeric binder insoluble in water and soluble in aqueous-alkaline solutions and… (b) an organic compound whose solubility in an aqueous-alkaline developer is increased by the action of acid and which contains at least one grouping which is cleavable by acid and additionally one grouping which forms a strong acid under the action of radiation, and additionally… (c) an organic compound which is not photosensitive and contains at least one bond cleavable by acid and whose solubility in an aqueous-alkaline developer is increased by the action of acid, or… (d) an organic compound which is not photosensitive and contains at least one bond cleavable by acid and which decomposes under the action of acid in such a way that it can be completely removed from the layer by treatment at temperatures from 60 to 120 DEG C. … This mixture is suitable for the formation of relief patterns.

    73.
    发明专利
    未知

    公开(公告)号:DE4202845A1

    公开(公告)日:1993-08-05

    申请号:DE4202845

    申请日:1992-01-31

    Applicant: BASF AG

    Abstract: The invention relates to a radiation-sensitive mixture essentially comprising (a) a water-insoluble binder or binder mixture, and (b) a compound which forms a strong acid on irradiation, where component (a) is a phenolic resin all or some of whose phenolic hydroxyl groups have been replaced by groups (IA) or (IB) in which R , R and R are alkyl radicals, or R together with R forms a ring, and X is CH2, O, S, SO2 or NR . This radiation-sensitive mixture is suitable for the production of relief structures.

    74.
    发明专利
    未知

    公开(公告)号:DE3871553D1

    公开(公告)日:1992-07-09

    申请号:DE3871553

    申请日:1988-02-20

    Applicant: BASF AG

    Abstract: Light-sensitive copying material for producing printing plates or resist patterns has a photopolymerisable copying layer on a dimensionally stable substrate, which can be developed with aq. alkali or organic solvent. This contains a polymeric binder, which is soluble or dispersible in aq. alkaline medium or organic solvent, low mol. ethylenically unsatd. photopolymerisable organic cpd(s), photopolymerisation initiator(s), and opt. other additives. The novelty is that the binder consists of film-forming copolymer(s) (I) with multiphase morphology, in which at least one phase has a Tg below room temp. and at least one other phase of Tg above room temp. (I) is produced by free radical copolymerisation of macromer(s) (II) with other olefinically unsatd. copolymerisable organic cpd(s) (III).

    77.
    发明专利
    未知

    公开(公告)号:DE3837438A1

    公开(公告)日:1990-05-10

    申请号:DE3837438

    申请日:1988-11-04

    Applicant: BASF AG

    Abstract: The invention relates to a radiation-sensitive mixture essentially consisting of (a) a water-insoluble binder or binder mixture which is soluble in aqueous alkaline solutions, (b) a compound which upon irradiation forms a strong acid and (c) one or more organic compounds which inhibit the solubility of (a) in aqueous alkaline solutions, where the organic compound (c) is a malonic acid ester. This radiation-sensitive mixture may be used to prepare photoresists.

Patent Agency Ranking