摘要:
An overcoat composition comprising a water insoluble polymer having a Tg equal to or less than 30.degree. C. and comprising 75 to 100 weight percent of the monomer having the following formula: ##STR1## wherein: X is selected from the group consisting of Cl, F or CN, and Y is each independently selected from the group consisting of H, Cl, F, CN, CF.sub.3, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, n-C.sub.4 H.sub.9, n-C.sub.5 H.sub.11, n-C.sub.6 H.sub.13, OCH.sub.3, OC.sub.2 H.sub.5, phenyl, C.sub.6 F.sub.5, C.sub.6 Cl.sub.5, CH.sub.2 Cl, CH.sub.2 F, C.sub.2 F.sub.5, n-C.sub.3 F.sub.7, iso-C.sub.3 F.sub.7, OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.3 F.sub.7, C(CF.sub.3).sub.3, CH.sub.2 (CF.sub.3), CH(CF.sub.3).sub.2, COCF.sub.3, COC.sub.2 F.sub.5, COCH.sub.3, COC.sub.2 H.sub.5 ; and wherein said overcoat composition being superposed on an imaged light sensitive silver halide emulsion layer on a support, said silver halide emulsion layer containing 1H-pyrazolo[1,5-b][1,2,4]triazole type of magenta coupler. Optionally, the polymer composition may contain a second polymer having a Tg greater than 30.degree. C.
摘要翻译:一种外涂层组合物,其包含Tg等于或小于30℃的水不溶性聚合物,并且包含75至100重量%的具有下式的单体:其中:X选自Cl,F或CN 并且Y各自独立地选自H,Cl,F,CN,CF 3,CH 3,C 2 H 5,n-C 3 H 7,异-C 3 H 7,n-C 4 H 9,n -C 5 H 11,n-C 6 H 13,OCH 3,OC 2 H 5, 苯基,C 6 F 5,C 6 Cl 5,CH 2 Cl,CH 2 F,C 2 F 5,n -C 3 F 7,异-C 3 F 7,OCF 3,OC 2 F 5,OC 3 F 7,C(CF 3)3,CH 2(CF 3),CH(CF 3)2,COCF 3,COC 2 F 5,COCH 3,COC 2 H 5 ; 并且其中所述外涂层组合物叠加在载体上成像的感光卤化银乳剂层上,所述卤化银乳剂层含有1H-吡唑并[1,5-b] [1,2,4]三唑型品红成色剂。 任选地,聚合物组合物可以含有Tg大于30℃的第二聚合物
摘要:
The present invention relates to a silver halide photographic element comprising a dye-forming coupler of formula (I) ##STR1## wherein R.sup.1 is selected from an alkyl group, an aryl group, a 5-10 membered heterocyclic group containing one or more O, N or S atoms, each of which groups is unsubstituted or substituted, or a substituted amino group;R.sup.2 is an unsubstituted alkyl group having a secondary or tertiary carbon atom attached to the oxygen atom;X is hydrogen or a coupling-off group; andR.sup.3 is a substituent and n is 0 to 4; orwherein R.sup.2, as defined above, and an R.sup.3 substituent may together with the O atom form a 5-10 membered heterocyclic group which may contain one or more further heteroatoms selected from O, N and S, said group being unsubstituted or substituted; andwherein at least one of R.sup.1, R.sup.2 and R.sup.3 separately or in combination constitutes a ballast group,the couplers providing enhanced light stability together with acceptable dye hue in images produced from photographic materials containing them.
摘要:
An overcurrent protection system which will give a rapid response to overcurrents which cause a reduction in the voltage across the load, e.g. a partial or complete short across the load, and which will preserve the trip endurance of a PTC device used in the protection system. The new system maintains the trip endurance of the PTC device by removing the source voltage from the PTC, while still keeping the circuit protection arrangement in a fault state, thereby continuing to protect the load.
摘要:
Overcurrent protection arrangements including a relay comprising two coils wound on a common magnetic core and a PTC device coupled in parallel with the relay contacts. The arrangement comprises a circuit interruption element which has a normal state which permits the flow of a normal circuit current, I.sub.NORMAL, to pass through the system, and a fault state which permits the flow of at most a reduced current, I.sub.REDUCED, substantially less than I.sub.NORMAL. A first control element is coupled in series between the power supply and the load, and is functionally linked to the circuit interruption element so that when the current through the first control element increases from I.sub.NORMAL to a relatively high current, I.sub.FAULT, the first control element can convert the circuit interruption element into the fault state. A second control element is coupled in parallel with the circuit interruption element, and is functionally linked to the circuit interruption element so that if the circuit interruption element is converted to the fault state, the second control element can cause the circuit interruption element to remain in the fault state as long as the current through the second control element is at least I.sub.REDUCED. The parallel combination of the circuit interruption element and second control element are coupled in series with the first control element. The relay contact functions as the circuit interruption element, and the two relay coils function as the first and second control elements.
摘要:
This invention provides composition and method to overcome the very high viscosity of prior small-particle dispersions when admixed with gelatin in aqueous solution for coating a photographic film element.The invention is generally accomplished by the utilization of a second surfactant in the melt formulated by the admixture of the small-particle dispersion and the gelatin solution. The surfactants of this invention, that is, utilized to control the rheology of such said melts, have the following general structure: ##STR1## wherein n=5 to 20 andx=1 to 4.
摘要:
The invention provides photographic paper having increased image stability. The invention is generally accomplished by forming a paper sheet, drying said paper in a first stage to below about 10 percent water, then applying a polyvinyl alcohol solution to both sides of said paper sheet, drying said paper in a second stage to below about 5 percent water, and then applying further polyvinyl alcohol solution to said paper and drying in a third stage. The paper then may be coated to form a silver halide photosensitive color paper. The paper contains between about 4 and about 6 weight percent of polyvinyl alcohol that is concentrated near the surface of said paper. Further, the paper has a oxygen leak rate of less than about 25 cc/m.sup.2 / day and an oxygen GTR rate of less than about 1 cc/m.sup.2 /day.
摘要翻译:本发明提供具有增加的图像稳定性的相纸。 本发明通常通过形成纸张,将第一阶段的纸干燥至低于约10%的水,然后将聚乙烯醇溶液施加到所述纸张的两侧,将所述纸张在第二阶段干燥至低于约5 百分比的水,然后将另外的聚乙烯醇溶液施加到所述纸上并在第三阶段进行干燥。 然后可以将纸涂覆以形成卤化银感光色纸。 该纸含有约4至约6重量%的浓缩在所述纸表面附近的聚乙烯醇。 此外,纸张的氧气泄漏率小于约25cc / m 2 /天,氧气GTR速率小于约1cc / m 2 /天。
摘要:
A ratcheting pliers device for extracting a fastener from a substrate includes a first arm, which is pivotally engaged to a second arm to define a pair of jaws and a pair of handles. Each jaw has a cutout for insertion of a head of a fastener. A ratchet bar, which is pivotally engaged to the first arm, has a plurality of first teeth extending from its upper surface. A biaser engaged to the first arm and the ratchet bar is positioned to pivot the ratchet bar into engagement with a second tooth that is coupled to the second arm. The second tooth sequentially engages the first teeth as the first arm and the second arm are motivated to a proximate orientation, concurrently with the jaws being motivated to a closed configuration. The jaws are prevented from opening while a user pulls on the handles to extract the fastener.
摘要:
A personal mobility scooter can include a front frame portion and a rear frame portion detachably coupled to the front frame portion. The front frame portion can have a front frame, at least one front wheel rotatably coupled to the front frame, and a rear suspension coupled to the front frame. The rear suspension can have at least one biasing member. The rear frame portion can have at least one rear attachment member, a pair of drive wheels, and at least one drive configured to power the drive wheels. The rear suspension is configured to (i) engage the at least one rear attachment member when the rear frame portion is coupled to the front frame portion and (ii) remain with the front frame portion when the rear frame portion is detached from the front frame portion.
摘要:
A synthetic polymer based adhesive formulation that has properties substantially simulating selected properties of fibrin glue, and methods of making and using the same. The adhesive formulation includes a discrete acid solution and discrete base solution that when combined form a synthetic polymer based adhesive that substantially simulates selected properties of fibrin glue. The discrete acid solution includes a polymer and a cross-linking agent precursor. The discrete base solution includes a polymer and a base.
摘要:
A personal mobility scooter can include a front frame portion and a rear frame portion detachably coupled to the front frame portion. The front frame portion can have a front frame, at least one front wheel rotatably coupled to the front frame, and a rear suspension coupled to the front frame. The rear suspension can have at least one biasing member. The rear frame portion can have at least one rear attachment member, a pair of drive wheels, and at least one drive configured to power the drive wheels. The rear suspension is configured to (i) engage the at least one rear attachment member when the rear frame portion is coupled to the front frame portion and (ii) remain with the front frame portion when the rear frame portion is detached from the front frame portion.