1. A curable composition for inkjet that is applied by an inkjet method and is able to cure by light irradiation and heat addition, comprising:
a compound having a (meth)actyloyl group and a cyclic ether group;
a photoreactive compound not having a cyclic group and having a(meth)acryloyl group;
a phompolymerization initiator;
a compound not having a (meth)acryloyi group and having a cyclic ether group; and
a potential curing agent,
wherein the compound having a (meth)acryloyl group and a cyclic ether group has one or two (meth)acryloyl groups,
the compound having a (meth)acryloyl group and a cyclic ether group is at least one selected from the group consisting of glycidyl (meth)acrylate 3,4-epoxycyclohexylmetbyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate glycidyl ether, and a reaction product between an epoxy compound and (meth)acrylic acid, and
the viscosity at 25\xb0 C. measured in conformance with JIS K2283 is 160 mPa\xb7s or more and 1200 mPa\xb7s or less.
2. The curable composition for inkjet according to claim 1,
wherein in 100% by weight of the curable composition for inkjet, a total content of the compound having a (meth)acryloyl group and a cyclic ether group and the compound not having a (meth)acrylovi group and having a cyclic ether group is 15% by weight or more and 50% by weight or less.
3. The curable composition for inkjet according to claim 1,
wherein the photopolymerization initiator is an \u03b1-aminoalkylphenone type photoradical polymerization initiator.
4. The curable composition for inkjet according to claim 3,
wherein the photopolymerization initiator is an \u03b1-aminoalkylphenone type photoradical polymerization initiator having a dimethylamino group.
5. The curable composition for inkjet according to claim 1,
wherein the potential curing agent is a reaction viscous product obtained by reacting dicyandiamide with a functional group-containing compound having a functional group capable of reacting with the dicyandiamide.
6. The curable composition for inkjet according, to claim 1
wherein the photoreactiye compound not having a cyclic, group and haying a (meth)acryloyl group includes a multifunctional compound not having a cyclic group, having a polycyclic backbone and having two or more (meth)acryloyl groups.
7. The curable composition for inkjet according to claim 1,
wherein the photoreactive compound not having a cyclic group and having a. (meth)acryloyl group includes both a multifunctional compound not having a cyclic group, haying a polycyclic backbone and having one (meth)acryloyl group.
8. The curable composition for inkjet according to claim 1,
wherein the photoreactive compound not baying a cyclic gaup and having a (meth)acrylovl group includes both a multifunctional compound not having a cyclic group, having a polycyclic backbone and haying two or more (meth)acryloyl groups, and a monofunctional compound not having a cyclic group, having; a polycyclic backbone and having one (meth)acryloyl group.
9. A method for producing; an electronic component comprising the steps of:
applying the curable composition for inkjet according to claim 1 by an inkjet method draw a pattern; and
making the curable composition for inkjet drawn into a pattern cure by light irradiation and heat addition, to form a cured product layer.
10. The method for producing an electronic component according to claim 9, which is a method for producing a printed wiring. board which is an electronic component having a resist pattern,
wherein the curable composition for inkjet is applied by an inkjet method and drawn into a pattern, and the curable composition for inkjet drawn into a pattern is made to cure by light irradiation and heat addition, to form a resist pattern.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A plant growth system comprising
one or more plant growth substrates comprising an MMVF slab and a single MMVF block;
one or more detectors arranged to monitor at least one of the water and nutrient levels of at least one of the plant growth substrates;
at least one irrigation device arranged to supply water and nutrients to the plant growth substrates; and
control means connected to said detectors and said at least one irrigation device,
wherein the supply of water and nutrients by the at least one irrigation device is controlled by the control means in dependence on the monitored water andor nutrient levels.
2. A plant growth system according to claim 1, wherein the one or more detectors are further arranged to monitor the distribution of at least one of: water andor nutrients within at least one of the plant growth substrates
3. A plant growth system according to claim 1, wherein the one or more detectors are arranged to monitor the water andor nutrient levels of at least one of the plant growth substrates at regular intervals.
4. A plant growth system according to claim 1, wherein the supply of water and nutrients by the at least one irrigation device is controlled by the control means in dependence on the nutrient levels.
5. A plant growth system according to claim 1, wherein the one or more detectors are arranged to monitor the water and nutrient content of at least one of the plant growth substrates.
6. A plant growth system according to claim 1, wherein the one or more detectors are further arranged to monitor the temperature of at least one of the plant growth substrates, and the supply of water and nutrients by the at least one irrigation device is further controlled by the control means in dependence on the monitored temperature.
7. A plant growth system according to claim 1, wherein the detector is arranged to determine the nutrient content from an electrical conductivity of fluid in at least one plant growth substrate.
8. A plant growth system according to claim 1, wherein the slab has a volume in the range of 3 to 20 litres.
9. A plant growth system according to claim 1, wherein each plant growth substrate further comprises a single MMVF plug disposed within the MMVF block.
10. A plant growth system according to claim 1, wherein each MMVF slab comprises a first layer of MMVF in interfacial contact with a second layer of MMVF, the first layer having a greater density than the second layer.
11. A plant growth system according to claim 9, wherein the first layer of MMVF has a density in the range 40 to 90 kgm3 and the second layer of MMVF has a density in the range 35 to 85 kg3.
12. A plant growth system according to claim 1, wherein each MMVF slab comprises a binding system comprising an organic binder selected from formaldehyde-free binders.
13. A plant growth system according to claim 1, wherein each MMVF slab comprises a hydrophilic binding system.
14. A plant growth system according to claim 11, wherein the binding system comprises a binder and a wetting agent.
15. A plant growth system according to claim 13, wherein the wetting agent comprises an ionic surfactant.